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 0xb536f6d0f0827e807d4d2b8542138600261f86621a37c1b4e36882c4b352cde0. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4843814-1fb2-487d-be0b-8424c61413f2.json and https://artists.proofprofile.net/proofs/artist/e4843814-1fb2-487d-be0b-8424c61413f2.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 0x973a0ab79182e44be25c5029538127b696c6c4f5ca64e5e0c51a3fc7687f78cb. 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/GB8KE1854660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b66033f6e85fdd73e3056eb4115212d71d408d42b60317af90de100536883a. 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/GB8KE1854661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e3fda8aa76fdf6b18f03b7100176d9a4dfaf7f4afac3fcfa55f6e6fe795c47. 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/QZ22B2070039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb8f3adab8be8e292d1e17c615dcf67a215d268623b5718f3187cbeab230544. 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/TCAGN2227938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac9c492b32ca26bc951641fa661a9b04fcb64ecee12b7026c97ec4e956702a6. 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/TCAGJ2218619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483040fa67ed102acc12c4a65af16626643f80a22cb3a66ae3fba7a9e9f5100. 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/ITC150000007.
Insomnia Selection, Vol. 1 (Discoacropoli d'Italia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595ce5f29ef263261cbb1ae21f6580af15ea9705771310636295e7ef4e011356. 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/ITC151500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73781429691a631b0efb06aa5a41c3357a316eb6066a69bcde15ccbdcc7b8c29. 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/ITC151500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad8087839cb27523fcedb8513b614acd310dd55aa3b486b5e4dfdc5b2ee4553. 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/ITC151500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274cbbc22f95c8736fb150c5f9f3eab5a4780ea44e8dfca300544f867b690b41. 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/ITC151500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab51efcd55be9de5c60956b3197c22ddc3889314738a20cc588c2b6c6ef27e3d. 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/ITC151500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e7a42cf04ad8588897e31302a1b5c914248fd51cb047a2677281208499c8ca. 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/ITC151500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1f401a7afd0d3eab1e080b3680e200345a4d6d1d915b7a440edae1bd992ebd. 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/ITC151500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661d8ea8d6255933c69522f391ceffb27325f99cab406a49b8a196b1489c3d1a. 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/ITC151500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483040fa67ed102acc12c4a65af16626643f80a22cb3a66ae3fba7a9e9f5100. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ITC150000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f6d7bf61f4d3745941f3e7f3758a046fcfce3c2922e2afbe96c4469c91b5f3. 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/ITC151500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8260109d8ba04c8ac53c284457695244164df7cb1f0b78bab8952fa01ed60b. 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/ITC151500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24af4dd02c4fc8a0ca8ba9394a00e6d85a41552a5f9cde67a95fa32bee6655c5. 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/ITC151500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d20857f62b00a8ce59d2b4d649a3adaf8b4a2d2911323f53824f7c60a93b57. 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/ITC151500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967998c6ee9d777819f650bb22d36de83e0126e1f8ea57cfcb8de5bfde402cb0. 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/ITC151500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f40107a9e6ba3bbc469550785c26e9476ba27382f0eed946b6fde7703a1a734. 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/ITC151500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a25a63b0cf432dfc1e6d17ceee30bf7b8b2bae7b932c7ec5ea0c2384b2f1fec. 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/ITC151500090.
Insomnia Selection, Vol. 1 - Continuous Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eb6b7790d82ffdbd688ea81129877d37a365d3995caad30a1a6a1c9a56f2d6. 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/ITC151500083.