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 0x995e56e32fc80f2e08417b63212afbc8a407465d95305ceece6c96dd26e9b783. 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/fca54350-9730-4f09-911d-8d19424df79b.json and https://artists.proofprofile.net/proofs/artist/fca54350-9730-4f09-911d-8d19424df79b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Noelle (Original Motion Picture Soundtrack)
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 0x7caa1eeacd0617f4b68a4cb9ba23dea1afd427a6a87e1e95204a78254a4e8fda. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USWD11995073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca96bf393d768376fbe577e1b1417fa4e7e7dad0a70f06b1d94f3598b12ffa9c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USWD11995074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf735b88bbb14ecc54cb835f77dd3c1f650e815150e19276731eeeec7846b110e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USWD11995075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10d5fb3cc88a1d1d2eed46e6ac0df960b8272c46895739ee4858fe440d9de03. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USWD11995078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d89ebda15af0515bee23a4988992f12802af928e3203318d18150d2879be24. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USWD11995079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc37827286e600c2c8e825a1f09ee6a132f29b08d4c25f9b469ac3ff1617eaa. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USWD11995084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe924a4dde2f494546978096c20e69eb28f8e9dfba3fe95c38359648dd34d0c50. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USWD11995085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078bff317e2f4c5bd55ddeaeb0ea5c55094ce684d511aaf6a5ae2778d83e4ab6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USWD11995089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9a5947664bbfee22a548e37043ea2eab5022b960d9939de684a00646fbbfe9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USWD11995090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa89c5695fc46de37b76e5d049c90f52e95ad233aba1b240789f207055a57ce8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USWD11995091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24be918980acc8f133783729af089805202df2e5601fc4ebe8203a0727de028. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USWD11995093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32cdd0f1166908e6633d5f23969a1dc6bec09c30eae60ab713627b974943196. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USWD11995094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4043d67f964668c909b48e6a215d22fbeb83970570f12028c681a9d61574e6b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USWD11995095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0ea54af99605869d8fdfbd238035576755dcdc62bac72486c3ae2b4bc6b081. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWD11995098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ffe7d9db5fc62caa18d5aad047a4198ae6c4ae82e019db35376e41ea6288c4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:02Z), 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/USWD11995099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdcb1dc39a3ec18518d97b6fb027409b579143b01ffe0a86d4414ca81e6cddc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USWD11995102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049050c2027aa7cb21253fb7bd27c740393f16a88e81ac617872e692a809e7c8. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWD11995103.
Sad Songs (feat. Allen Stone, Clyde Lawrence, Huntertones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80074447765e86d246a288062e0e0802268295bc1a908cab214898801f562261. 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/USA2P2328082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80074447765e86d246a288062e0e0802268295bc1a908cab214898801f562261. 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/USA2P2328082.