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 0x7aba11ba9dd684a8f56d9ee1b18887016753a51c66bb613f3784ed9d186b58fd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30ef0c88-9f8a-4cdd-a2c9-cca414091c95.json and https://artists.proofprofile.net/proofs/artist/30ef0c88-9f8a-4cdd-a2c9-cca414091c95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Endtro (feat. Denzel Curry & Hannah Mundine)
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 0xace027cd8d4e6ab5b1f1cbf67613c088e34a76c4a122cf56622798d75a573aa9. 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/QMBZ92495398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb618378e6291e7deba4549b00a644f9565692234aa216435e91001e76c9c2f07. 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/QM7282443962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b758085651727e000e7a44c9c5b4c006f7adb3ab433edad25ab445e79b85a81. 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/QMBZ92495487.
Shmoke (feat. A$AP Ferg & Armani Caesar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda53efafb2d3b37271b515149d3b3d2f2dbc737e697c353a4bf2578ea08f8004. 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/QMBZ92457590.
Bandoe (feat. Denzel Curry, Meechy Darko & Soulja Livin Tru)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea50b2af324883250b186810cde1e16093abc1fe9df92646f91a6b5e9b98cdfe. 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/QMBZ92495610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad91c6fc9d085960ab14f7e8cae91903de7ba3ca5ae1da0eeaa8bc3966e9885. 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/QMBZ92495657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63b63017554cb4783409801f61e5bddc9b0dbb696625a972963a06353b1477a. 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/QMBZ92495671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83528b93de2040f8dd2ad2ab4528a99630aff92e4a73a4d0d99358cb80b52dac. 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/QMBZ92495688.
PAMPER PAMPER (feat. Dro Kenji & Mike Dimes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f43f926a5639dfb708d6e332aa91923ad9b69ccfd0226193f1e8c837f2c79d8. 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/QMBZ92495699.
Baby Boy Is Drunk (feat, AG Club & AUDREY NUNA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36954f189499f45c99da600084118f6bb40c1b8555834edef0705b2576b463e1. 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/QMBZ92495705.
I'm The Shit (feat. Guapdad 4000 & P-Lo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95da5d14a6ccf5af930e928ac4705d31e10960f01dd633b95c7e3ecefe19c7c7. 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/QMBZ92495735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac582797d506d832f59b583b19de8f0b96b64e59495c5264364284a598539f6. 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/QMBZ92495739.
SMH (feat. Joey Bada$$, CJ Fly, Nyck Caution & Aaron Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc84e0f556c3d02be83981d18b4bb6a508866e02ddf110e263d1f739c4901b38. 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/QMBZ92495769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3f6436a508c64ccd3af892616e432db9251c73fca100ab74a6fdc39f1e3104. 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/QMGR32228206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3f6436a508c64ccd3af892616e432db9251c73fca100ab74a6fdc39f1e3104. 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/QMGR32228206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9b797bd604dcb2ec263183709339bc291c5b3a0a0234ecf17cd4d35cbc2c87. 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/QZS7J2381824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c18550d9763e92e10c163bc4b5a87b0a749d1eb1d7a5ad7dc75f3375f2349f2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZS7J2378116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a487582047f6b974d7cfbeff5fb6df566caaa43456d0976213b8b8c670c4842. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZS7J2301801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a000e0caa93e07a89567abaffad42fd9480be82ef07f15e45e914697a24e2e1. 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/QZQAY2182874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78222f3b0a428733d7d97f4c67524280811f5635aa07acf0cd8df3abc8ad7cc5. 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/QZQAY2149236.