1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7802ccf99dffcfb6409cf2f1bd1fd627a210e329c9077af3dd1216ef8842e087. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e5d2edb-7132-4208-91f1-aa334a708e8b.json and https://artists.proofprofile.net/proofs/artist/2e5d2edb-7132-4208-91f1-aa334a708e8b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7d4646382405e1fefc449e68132c55bb5107e9602cfebd05e47caf9c07235e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2418769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f9c79776af4568f548983df4290a014ba2a3b342ee087e169119da487cc340. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2401233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf512edefe52b78a3a7eb75bf9fe6789015d393365beb3c2f748e84a0fa7f4e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2498471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdda5198c4b01803fb232e4393cde187105faa3bac031ed4a53dff6dffd31cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2455947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c054b01441ac23793d79453b08c471cc4af679e80d9260c3c7874f6dd6ea540. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2423611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef70659b0ae3fe61f848da4aa080c64a5ae49e2a399d051d5e02cd75941fdcf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2423442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09ea69356d05eaf4c0b3e5f3644728d4e02072ebd0a3df13929be09514f8a2b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2486030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6bc409b695a0f70c503cf48db151be7b0e75bfcadfaa64de59cabc5288734c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2403863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d62468531505b0f66280f6ce640042639b153bdca24d0f68a6ef2595ea9a40. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES64E2482515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d0cc104a6cd1b72e14c6b36dbd8d70601fbfa2def757ab5c3c6781ca0b225a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2494297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5f6f52e5b9503d8b71523aac44c565696209b55376472794d90daf510f2046. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2436034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9099ff80929c643c3db647d1196a019689712a2ea654a832c3389e063830df9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2493023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab14624ef9574a73aec68bd8f95a6b35dad52c67f718e733d3a0865ae329eec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2405615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94503fac108dd58fe5798b519408148aa880f3fbe2757e6c98a6aead9e972d8b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2486707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b71025ae9ddb86d0f698a99ca920e7da7391f36e20e03b0ba2421cbc473a26. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2319709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3586d1103eb6f6bd3a75944f1a5dda9009fc4719de787abc91aa91734a4294f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2304669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c2a305ed12e4465960e91b675f5da24a1be11180c252bd07348404acda2648. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0M2325906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66493dc5a399542b04bbc306a370d3d33ff6f80337d7f57fc0995395681c68c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2305522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd25db1bc363f384fb24a53e5e50f4266ac1ba59330ac938fee151459a24e15c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2328460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b03dc8bddb7763742c8a04bc19d35c84e36946c58f6489e385b5ccd1e3eaf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDT2300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66a4647dd0cbf87bd4eb404427ba2dfb4380711162873adca5c2880717e0905. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2363787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a31b0055ffb652000bf36c9b6eadfabbb6d12c475b952aff16c3a213c2ac83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2393680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb173600912d3fe2ea7b950ea214f87f666887b5475cec31580a3a6478ce10b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2388160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29b0e659e574ceafa15ff8ec87d474d470693d46a661dc4e8f1c1387bece2bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2246196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ee3c638519faa0e8934cf31b38c0bdd31550eac7359d66dcecf52803aa7738. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK4DA2308381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc6554062c6d37cfebcfedba85cb8eb7b422a613d0f2a588e99e338b68158d5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNPW2200523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3878f5ae623da6133e65a17df362c508cc4184a05c2e174e1741cfbcd8e7188. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDD2275713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856b9497fc8621e9d7c0e20f4df616c634820720f3e407393ea6fd76b6c6df6e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWUL2239249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7d0c6270e0ddd7a1e98a8096c4c2e7f1de844d357efadc1c64cbb932275ba6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDT2400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b013f12d5d342c5b310d6f3d580f4dfe28ede70d219b892e49cba22cd97e5c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDT2400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68de985023b6e608222e1ea53137b386e08606384bbfb53a6f09041b79b880c7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2415959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789a0cf2a0ee9da50d9d59e43251d4244ea9566c080b5dbb0e78ed525b2398ec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJ842402602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bec26e5098fe2bbdcd30e897dc954c1b6650b1d82d84b0a684b26c36ac770e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2107487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9799de8af1ec605118773fb45b716c08b8b19fcf8c80a3b8723d191a315f7389. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2417354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68862b6bfd605e3a894ad7aec5e4e2029999af546198e75356dacae69017b90d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92524061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6069b54f81af3a19e239fa1409dd1cdddb2a462483e4627b28a52c6c4e7662e4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ7R42455720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb518a73eb202c47e1396da3873c7c8f5dbc1476355e4888a903eec3e668f0bd3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2587758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c97851d4a9dabe946e66a450cdcae905c53f1647f603cd42c547f7ffdc560c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2581431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607014102fb07b7771739b1820aa4d47c751cafd8ee3d02c847802e60d3fc67b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2316368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad804faec0b61abf93087829640b76678a45811f15d63b9223a09b827274991. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2457208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f92d4c4b12382e4867d3e971699f6698bf4e4a5293880e553ea4176f21912f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2489359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f9049afde583a77bbca2b32ae1ad975a557a8b999ec9b68b12a4ff8a785c61. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2481733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c8358fa781cf79cced484e52a1b99cc2317c8bcde28fc66e9f17604a11a67d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2489685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2f1dfb9ed3badd7aefcb66bc50b82c5d0acb997279be9223e46dd44f01e7c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2406628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfaf1d9f5c689ecfdc9bd556ee115a01db1e0def4dca52b9a3e87a09f6e53c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2477186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8870eb5466523f69fe1efbae28d5118a9dca9dfb7c6248a02c79415935013045. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2476708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dbb6649769cd12ad94a9eecd8271c02585611aa2a647c66cda9b00e972c404. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7819573518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67037a376c4677e2267193d0bfc7fb4addd3507de5dde3b3f1c166ef06586a3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2437937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec3f56e44d090bacd203ddcca8d41a0ba7019445752646062c8f7059529d755. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2401174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411c2cf306220b9d85c94af35405329d22ed34a05aa36bb80fd34d08c5971eff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS7J2509238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031f246871aebf528d2bfb722fa92fcf10977ccf7a83f3d3fed2749cc3598f0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL8RL2525342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957cd42f7f376c3ff08029e0c26fa055c101cef78b8de996cf7efd69777b0519. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2579043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a91400b46ee3d56f0b7167196ca2adfdabe559e67a524f2c9a93a32052c71. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSD12100650.
Culo Chapa (feat. La Perversa, Quimico Ultra Mega & Haraca Kiko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1353a2aae36285f9e8b7867196d3a6e7d89c057dacf7d8c74348aef98b64022a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT22201143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed08f50ae0d02402bcb6ff44adaf69524d5a210f5c9013350663a5638486ac4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2181758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78696cfa2349a4b0451dd193ffc4c915a8260cb12762dbbae383912c882fdbdb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2111407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd13cd061049a618e570d5f5eba0f1b7b31e6a353fbe8e64b25c44856f416d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBWUL2185610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb8ee6a3003a8e9c33d0c30e87dfa6ff24a1a341454dc4c6723d51a0f1670e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2071248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ca4b0415bc94854281cebbb4300c28cf46a2fafbeda6c3952d567b486b751d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDT2100830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001e79931da5531b7bce619a9388e337010e4880ef7585430df4d49872fc6288. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2148261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d23e1550ebd6197d03b124a5c0ade0e468cf327f7e312ed2fdda91486e426ee. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:04:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2122105.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5566089e1a995c18ef57b9bd593ea551eb0a9de8712c46cd3f88ff25df6ab93f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS7J2328490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3110ac08d3373edec2d3f316dbdc52ca8ed118e68db851785e62ead5e1736d. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2095316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f6988d2e87b6df6cc37b95d009ff3f99b7ebfbb25477aa42a02b4842b641f2. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2070271.