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 0x2186929120a68e7a7095a0da8370ddb8acc807b3babd5be7ef233673c33fcda5. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c253c053-6a61-488a-a8f2-f1106ce7e04d.json and https://artists.proofprofile.net/proofs/artist/c253c053-6a61-488a-a8f2-f1106ce7e04d.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 0x71b4d5472ab974aff9b3d7a443319e1b451dcdf76f2aada34f7c6009f960fb07. 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/GBPS81500868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a6da4448598757e7f921c3681a1b76e9160d6bc0a22e63fe3c6718a77f0d7d. 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/GBPS81518952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe548d36b078aca1111f03a8916590f9cad80c45c7c5bbc5692065d947dbea4ee. 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/GBPS81513212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f81b074f1f33f1835aeb3f18a999b7d0333a21da38c306014cae01d1b5a56dd. 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/GBPS81500914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974b7d18fa3e3168d86d45a3917486333752031944a45366b8ff93405c9ad27f. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/GBPS81514071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927b23e56053c1d454c67e41f498e0b2b48f4f54995664ace034069715c84ce4. 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/GBPS81514216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03f34f03de895b44a834e5ff8dba0d199b10c48f5f14d6b52ca71b205217ff3. 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/GBPS81514057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bdd410d431ce1c9e8d22ffcc5c41d61c88bf9cf3611a0eadce6b35738441d5. 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/GBPS81514123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fb1b309cb226f374745e0b103d81290aa565687996a72c2dfbfefabd4fd38d. 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/GBPS81514132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f475f908ece91d8cf391c9f13c4b7d3e99b5902f8a30cd49662d5fd60847ab3. 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/GBPS81514009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd06f10556ca51d8b1a741e2079601888c2aa03d12c498d90b336a91fcd761af. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:00:04Z), 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/GBPS81514201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993db46a946874ec39cdbc68ea302390c50eff3a5cc49580fb1dfc55a51d643a. 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/GBPS81514101.
Feel Morning Breeze on Your Face – Zen Relaxation New Age Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7635b9a9408f1ad2b4d0de891e8941092925ab07c1e10c3534faaf861d07b7. 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/US5UL0763582.
Relaxation and Meditation: Calming Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3d72c4f811ff163ab795c898ab2c1d68a72001cb63e05f377f391320f1bc5a. 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/GBPS81514135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d71a88f876abf194cafd73b861d52f4142a379dca9e62d1847dcd1b16bb8353. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBPS81400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0b7c4588d175cccaec62eb5874dde5977373a8e627adf1dda049bbbb7d8144. 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/GBPS81501358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67699ac6a67860531abd8e8c649b7dcdcc17c388bef15088329ab4330873fbb. 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/GBPS81514014.
Peer Gynt Suite No. 1, Op. 46: III. Anitra's Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7bc23c0c32876544c4b9de4ca171fcd6c0d1f0262cae863c04a067925550af. 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/GBPS81500448.
L'arlésienne Suite No. 1: III. Adagietto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3db0d2634a7434e0f392f84c78b37dca41c5bb78941e28ea9320dc9a2136be. 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/GBPS81500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db5f0d706fcf51c355e974cbfac7f4ab6bf940ffcb42b31b3b7ec8341e1c359. 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/GBPS81514210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02a5dfb2c8cac4d57eca313347316729b7ed83a68cac5d68644f2311da28666. 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/GBPS81514019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70daadfae9018b777f07fafea51ee9e24aee1f915f887beb61a3aed9cca87152. 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/US5UL1109878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54ac18668397c247ed0838be2b1bcf543aa2cedd47e971d1232b9e9200d7262. 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/US5UL1034551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2626b6537b421c6fc38af03195259098ded6974f000d9c1de3ab9c174a78b159. 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/US5UL1529724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc040b9f90245ed6402d2463554c56d7bce0a5553875ab3e203c45b7c05215c9. 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/US5UL1108331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b77f4668e4e41884e1a18e04d180cae2d57c54cba249b61b5a3f8ef23994bb2. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/US5UL1040396.
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 0xf1c07ddfc2a57e51d0c0fc2eb03ff43ef0715d3181c467ce8b601a51fec3ebed. 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/US5UL1058614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708fed46b3d8f04a16e37b62fff56ec7ae233b9a4b04eddf56cb28ac5d3c604a. 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/US5UL1215733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e27012e9cf947e92134b540a612b757989bedd09e2ba271e8a86cfd5357fa7. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/US5UL1111532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e7f504c8de0cb2b16136c31816f7575592fec14a49c56e156f79eaf0d26bc0. 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/US5UL1151708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07e9baee77e0651f6f22acfc6ea317c9ed1df9081c18858b08d16a601e3a731. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/US5UL1500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d32ed1ca960625095240549c2fcb737e9739b52af58c264392bf416b7bd1a6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US5UL1656808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ab52699af06e0023476156aec10abbbbd418cafbd5899d2f098875a13a4584. 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/US5UL1403145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7e17074e6b7720c0848b36dcdba81342bd140a772090810cb35562afd86c19. 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/GBPS81400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4b89f2d24317dab25a4584969f6ec01936fda9b5221803ba3ffc7db5c8744c. 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/US5UL1861117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aec91627abcce7fb54f200a35a0763cfe2868669471b3d000bf5530fe3c930. 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/US5UL1520980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1e5ec6e51ca638fd6c132ffbbac1655a2d016a0e804a12b0bc63bb3023d0f5. 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/US5UL1503488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33046c09c1d4032243fef1a65e0526e4aec79a79919351481686ff41d70f2bce. 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/US5UL1503487.
Deluxe Jazz - Romantic Tracks for Good Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4ab724cafe41312ffb5364596107f90277579520fa3a9f2c733889c4dc0599. 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/US5UL1226252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8be6f6353d1d5a86d46d4f490851662c705324381d3ca974efcb078e0a2b8d. 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/GBPS81514283.