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 0xb012dbdf56723ce18c1ab56950e681c02eeb3d2131e1c7543e030dba01ec9b47. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/580c9495-e6b8-4bff-8d28-74d78f9fbf75.json and https://artists.proofprofile.net/proofs/artist/580c9495-e6b8-4bff-8d28-74d78f9fbf75.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 0x3684fa76392ca5c602ed5d3f558ad192f61f2638bb7eb8b54028bf493779563d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZDA82336950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323fbb4acafd09c0519eb53e6680a325b3979bee57608984a21a5b9ab849bd1c. 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/QZDQH2376769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c3f89c29207409c30a127ff5ae586c4f6007fe7165ce34c6695c215b8912e8. 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/QZK6G2363897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786a756314d88d2866d2998ccef6c9af120ada5fd54c75f763b6ce4d6e67e0ab. 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/QZDQH2418386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e9fbfe9690017ffd389653827c30134de5520e963fd9db4cf71bef84bdd07b. 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/QZDQH2418388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57556d039b128d1658a4a619520c3485a040521b79086233f64f91444d7dd9d1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:17:00Z), 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/QZDQH2418390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4945cecaae2ae7bf8503974eda2d6e7b518ec75bd7c408946c438acfad81329. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHNB2325620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f301a1dc46b5ecb8355be72a5168f1ec8220a0570fdc2a38c91bf914b7f8fc. 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/QZHNB2325623.
KD Music Presenta Grupo Dcstr3s, Vol. 1 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4505876332d5856a53ed9e6b2535d33015e7cabccf36e9505f45e4943d5f2cdb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWR2268856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26c3311bfcb5f9c9dab7d59ebab5399425f03cfca4dad6edae396c54aa761de. 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/QZNWR2268860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d6daee6b58611b750aa7dcdfd409afff6f8622ff50901faeba1d4b810fced. 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/QZNWR2268863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5db09342082c835f68e54aac513b32c7c9f875210a59fed7426eae0893ec83. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWT2033922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fe2b588abfbc3dbae03dd35efbcb0d6fae598fcaac587c0cab4b7a3120cd09. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWT2033924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134e9416dcc140463e3d7c9564fac60b206cfb78d42683467a0b55bdd0d779e7. 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/QZES72546230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389ca29c5c9f0902e91e32577294103acca25604ffd8095242679440f83ce7e. 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/QZES72544034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00903b1795013f94d2f06b00510ead78fbc6262d7f5ae0640b4333ab1cc0a25. 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/QZDA82588993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8c435d4a18a4faff6d960f9dba528c15ec3e5988e628f3f50628b1ce9cb1e2. 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/QZFZ62582046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3058c092eb70e8f14a33b09e3bf758b0d90deb9687de82fa260eea73900d55d2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZFYX2554628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655da4d3eec35293271ca9d2f4f863a924308feffdc85a25ba9dee5f8464463b. 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/QZZ7T2430815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffc6af49eee9156b69b58d551eb6c7afb59d99fee299106f08cc646179abc48. 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/QZZ7M2486763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd44399d2b27120f8e8f266cafcb2466fa711596c335b75ac6873d08cb23db5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZZ7M2407911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90a89607d0e16b1f719dea9ad40fb1877cbf03789dbf660212a9fbf016755f8. 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/QZWFP2453730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc28cc40cd6ab4c05fb573b0b2f43f07d6b225f99acfb89b8c31322d1dc3dcf. 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/QZTBC2404891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6fb4f1ddfeab7e8da2e8b462123108d28870fc213b755a3b58f684fb080790. 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/QZDQH2428150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70165ecc5a1025a99410b19102aaca0637719c16fe2e1a3532f3bcbd3cbe9148. 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/QZNWQ2301183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60488fffa32a129a161c21e11aada465523e03dc35425e2535b8f3c61d5026d8. 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/QZTAU2263762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cdaa12dfd55f8497a9198999eaf5852531bcd6f8753a38b08957ab8b50d8e4. 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/TCAGN2229729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f4115b7f21a5cb10cfd77e9261ef82d9edb27325dc19ea57ab28eed643f367. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZMZ92162709.