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 0x64d44bbe259edb7f00c9de63b1db920cff37113bfd95ffa62e062d82d5c76f3f. 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/308659f9-cbda-408c-9a79-71c98d7d1959.json and https://artists.proofprofile.net/proofs/artist/308659f9-cbda-408c-9a79-71c98d7d1959.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 0x6f668998a7fa09d0841209243fa48c1949e007a6e36a10ddbf05fc9c594f7a17. 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/RUAGW2300316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524fe32be7dbe1869ef196a24274d85fdc2164fc79bfe7c6ed53c24619fca193. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/RUAGW2300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a64582661be71a4cf55b82d1224371f7ccdf9e5015737b5acee8bc58c9e7f2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/RUAGW2300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dbf406058f50595f589033701525d39b8df094de5c9e8f2eeb0e5bed39f37b. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/RUAGW2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462a673159413c85e78c95477fa72f11a5edc06a796fa8a50331c3f87a2277b4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/RUAGW2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bf5d2b68ae062984d345caf8c8979dcabb4b9b173e740758b1bab4c694bf96. 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/RUAGW2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b2eff2d4b0cd3ebfeae36b215b8e8f45eb5c9135d782bc65c5b28315622a55. 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/DGA092480675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf500a4a4a87ac3124eb5a045b81cf9afdd57a02b196d3bae1810057428359d. 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/RUAGW2400986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2228cfc853f54040ad34d091f4682812b2cae11e85c57449cece2c2442c266e8. 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/RUAGW2400987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4ccd6381d0f62505711f2af16932f8143a1bfe3fcc1e249399c00da8e9be57. 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/RUAGW2400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f668998a7fa09d0841209243fa48c1949e007a6e36a10ddbf05fc9c594f7a17. 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/RUAGW2300316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524fe32be7dbe1869ef196a24274d85fdc2164fc79bfe7c6ed53c24619fca193. 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/RUAGW2300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a64582661be71a4cf55b82d1224371f7ccdf9e5015737b5acee8bc58c9e7f2. 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/RUAGW2300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e7b8fb8379c7f84851dd5979184dca4f71865003fcc57c586c431da1ff692c. 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/RUACR2300802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc682814d62a94d8e6c32987ea55171d4da20dcfc04f46de4dbdb0743b8ab98d. 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/SMRUS0074792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe147dbacd49ae94a8cf323a41bb5bbc2d8f4450e30099a7a06b1cf573ed103e2. 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/RUACR2200667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc9ace179905ecd062dd776b48fbb7b50bdefa4daf24d81c89c36459063fae. 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/SMRUS0072493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b9dfc13cc701cf7871d01775f1cdfee2af541d98b566160ad1b543dca3dae6. 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/FR2X42206687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548384bae3ba091d574da1f33c78e45c5b04e2dad1edd2aec70f562729c3a82f. 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/QMDA72175967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1d9788699f40291ce5239a75f0d9eb28dfd4fb1ade1c602b0d29187ea57f7. 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/QZW9N2255531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a48ede3a29019e4d16dcc2764e8f88e7b5272ce7688bdd7fae87f392a82dd. 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/QZW9N2255532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f02b2d88f7e649f7ee42ff111d94ac4f470baa79554c6e06729141087c85fd. 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/QZW9N2255533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79512c1747acf55e4494152dbe25ecf4efabeea91292ea032410fe7000c3a71. 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/QZW9N2255534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1380f5d9706977f7d35cddb4fe91d57b353e6ec6418d2cc5cb381f88e6118f64. 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/QZW9N2255535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef1f1acb3c71869c35db1a6d1d4d66d1968aade1470702db64ecf15dfbae14. 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/QZW9N2255536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1366ba0496ca1d54b15f7036ac8f1dd56dfcf9256b7083e77c94361ff2377e65. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZW9N2255537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664f464d9ab4d527d1efeb65f4d7bc6c3181bf8556080b5f2c98294512a87d56. 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/FRX762432130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e29920a4d0d6de6a1d8bc67cb5efacca7ae9275f0f0fae371f1d0128f256a7f. 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/FRX452490657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1253d7757ffcf81b1537353d9053c79af5a4a384e4d6f5cc4ddcbd0f842bf0e. 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/FRX452490658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca293fd172751f1d8206252ad7f5f54397132fb0f95b0d8c5b1c84e9282d434e. 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/FRX452490659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fc6805b247e7d6f56ab2f90301c9fb6f5b05691cfe7677e63a5fee00ac68eb. 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/FRX452490662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf798b4511d984e0387e143409e9f8e18e7133662c245b905cfa036c383c6067. 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/FRX452490663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533eb4e542c67ef114a719daa146260a2d3e9b5fc34a3879e5769998deb624ce. 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/FRX452490664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d6670305961a7530a700816385804ad5f14d04a0f2ebbe746d18e734f338a4. 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/FRX452490666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f31769dba1e1fe66d8d2efed8990da13f2f951b7fa465c7da76ec96e19ee92. 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/FRX452490667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51adfad4de92a31d7b82d3845e3721a52e4c3446df466efb4a2fdfeb2d4f22b9. 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/FRX452490668.