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 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 0x47665ca777ea68a8d81edb3f10373f9a63c2518292a694eeba9e088db6cae744. 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/161eda88-146c-4d65-b05e-970ee71f0aa5.json and https://artists.proofprofile.net/proofs/artist/161eda88-146c-4d65-b05e-970ee71f0aa5.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 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 0x57d53d2708b5cfb9caadc1a8e310caa1f210a27d7da9031f8b7b39d45ed5087b. 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/FRS182069703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc3d8aa0507cf05cf9c3a52249c4a8581a748eeb6564eae9a7d3fd0988710fa. 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/FRS182082527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b9491a2cca3cf8eab81c2627d71902789fc3b3377e0886e2a6155e76eeea85. 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/FR2X41737808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297b21757a59d4132a997ea5eb2efcae39a1a5ddd2011dde5d10ad8ae3e23677. 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/FR2X41737809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fbb950408c31ef3d92834b9cad49b36f0061f91efcef8953f8c434b261d1b8. 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/FR2X41737810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489ea917a4e70711f87debfcf08d47ef4e098680b6067d1042f7358de1459dae. 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/FR2X41737811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f38e95f7d0a7b2d52340064463fa9bb99eaca3bb3b905af13e97fbdc159e5d. 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/FR2X41737812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178cc3cb395a01faf59d8133747d78a631fdfbd4c5c54c54a37983eec7bab49e. 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/FR2X41737813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0f00b1f9688937bd8859d843a18e0e4f1995d9ff1caa9696d4a807e17895fc. 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/FR2X41737814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67fcb183814f0c4c2621d72b929f79e341992b2ccc592442a2f60c884c2f7bb. 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/FR2X41737815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935b0704d3b3395c24862208f3d90284ee52bbc474447661838f5967799b6dc0. 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/FR2X41737816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8579be01c78d1242a8ad8b7466b29db1dba92b2c14040b32c4a7a44701b0976. 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/FR2X41737817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24ae9028e0558aa34158926df8607b91877e4ea7f06ccd9568ff4ec392e2399. 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/FRR642400913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bd278aa0734403c290d0b9f3215652dfb248742eb56220003fd42c30dcc84f. 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/FRR642400420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278ad679291bd06a2e3e3b2a763b69998bdd3e4c3c86d87fff367776f9a0b927. 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/FRR642400293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d0aed7e8175a4841caaadb02521522247c312e041ad384f578d4985fbdefcd. 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/FRR642400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adf0644e21d2bf383abb4af8412cbe170766e892633623ed8800f9ec9353ee2. 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/FRR642302498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d412ce8a4d27d3219405c53e7cf55ce47ebe48cfa1e801fb54b20358f010ef. 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/FRR642301763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c17ecd232edc93f684497ede42db14b8be119828081ffe5a6eda81c0ceaa88. 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/FRR642301634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9658b04577ae11e65f8347128fa8ac5f9839bf65cc5dd17a93d8ae99df3d04. 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/FRR642300704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1621fa3798fc41d231032dc3648dbd6dc77f12ff33d725756724a44e88819f. 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/FRR642300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e07eb0571434b74fa4d3cb6bd052c3eedc5cf5d742a0805056f298c8344329. 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/FRR642201816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903d92f2b832f5dec89b7d5736d833a4535d328252269b7329b59c1a997a0cdf. 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/FRR642201539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0de46421b1d48f0df01897ce6a3a1b08723f90cdf105f75306e6b5d49bd4855. 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/FRR642201416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8437c89bfd64dceb69c78e06f9a4afd1f55607f445d55c7c39c0b4d897992661. 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/FRX762231617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434996ac3bb5010b66f2bec3142f45b8d8882d12ee52a9a8d120efeaf22b5560. 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/FRX282280542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9968bcd1a89823ba8e2a152fb1411bf0d2317c9de773fea75531d435802e6ab8. 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/FR59R2274968.
Orchestre du vélo tout puissant (Nhyx Rework)
Orchestre du vélo tout puissant - Nhyx Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb540e41c68d0607a11f56484a7979781f85c14da250ad340028a70bec3c40b. 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/FR9W12206027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4191a835c0c23dc25638bdc138b0d06321b9f38cce8f5fd7c5e7297509848aa8. 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/FRX872189351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75139e0b54dc96b8ad7ea42b9b65e2698a8910dd028cb7632b1f017fc699f7a1. 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/FRX872189352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7879bee2389ec2948c8e0c55315fd87273cf93e24a4be0087cdbe02071b0f48. 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/FRX202102018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2d4cc195f11fcafab1cd4ed5a301b720854aa535be763ec7430636afce622d. 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/FR2X42198741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdd10d1a09da1e2653aab8487a2762d54faa634481f72d5fb4988f9333c6b83. 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/DGA062042350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178cc3cb395a01faf59d8133747d78a631fdfbd4c5c54c54a37983eec7bab49e. 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/FR2X41737813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb101a00289625470c174ad045b7548ca7c3f012accd8b05a9db4cc24405ed12f. 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/FR10S1773631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74a03da670b9fecb17f72ba66ff99a5b0596039255a63a4464e97facd3b5aee. 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/FR10S1773632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf52cb56470916eb01c1d3f247ca4277e6c73e236e29e67f4eb0387a21011487. 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/FR10S1773633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613c1190e4e7d702443bfe0301afeb9cccda30cf979df2f785726271b34c3edd. 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/FR10S1773634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db4a7af90cf76e4b9d76f6ad8bfbcdcaa67d726b3e9cf7edde9137f35bafdbe. 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/FR10S1773635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065809a06199b2a8939e2e9e8f4b963848ac85cb4acf1e2e10859510347dfd92. 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/NLE801600814.