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 0xfc5dbd0a7c39a255c60a3a58d3574eb37092afa5ea3212a8f7094ded24d54183. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96347ca6-d990-421b-acb4-5a4949693d87.json and https://artists.proofprofile.net/proofs/artist/96347ca6-d990-421b-acb4-5a4949693d87.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 0xb483d360bfa40f8d6044199dc071f94e8f3e8475c2114ba4e706393657a512db. 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/ITS781901042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f35634395307d34783a062857fb70197fe18294a536c13b852966d2a98919a. 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/ITS781901043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28eaf7e02c68e60456b34ab977b9d8b947d665318a858acb1f9b6faf1a384c5. 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/ITS781901045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac951c84b2d5ba21003e86ad2910d1ce00c30c7e79a80e6d7b4487b7e3bcf6c. 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/ITS781901046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871ecb14b990f50f76ec2d9c9cc1d1b014acced9f7db7c5e4f6fe2b15c888974. 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/ITS781901047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0152b4f2fc495ca3970b62a56f5b696f6e4c4a6cc77dd7c12e5b0763477eca1. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/ITS781901048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84546d86282755bdb32765a63096d603e0bead091cf91917eda11a81de3f8bd5. 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/ITS781901062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f84c5c97816ebcc976d8de276db4bd0edb9642d3a1150574919c245507a94c7. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/ITS781901063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c296d4f84e7aed50af0729417897d2673bedb56ffafe6450abc6f7baa9457. 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/ITS781901064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccb5242b0ddaa0e609304d2cd5fb1f479a08c4118efa61c46a7da8411b5dcd9. 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/ITS781901065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b54a591a166a20748f563c78a525dcb64b4438ddfebd0d3ec9d8559b4429f17. 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/ITS781901067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fddf1a8b54bb71eccafd0bc40060ee5be30a33e57f422f267c5dd4513b4d91e. 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/ITS781901069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9ce91c9720f0e4da2a86c70e03abe6ba9115879ed9998f363e3e850a807735. 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/ITS781800850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c741361df10fcd21ddc11d874881917c9915f12631f7a40b99b2665db86ae7c. 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/ITS781800851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97a86297cd410948b52349100540f0cf128e2be0bce736649adbec2932dff65. 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/ITS781800852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285e332eec8fc519b6fe430b87e0a24548172291d771462245312bbe70cdeb29. 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/ITS781800860.
We'll Live in a Better World - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381a02a78b8fbbb1fd671254a110ab69facbb36c50d3b297beb98b2160c4c6a8. 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/ITS782000556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd49d5f30928155f7c084220f64fe897b3ad7373f60291ffa46d900e17a1f41. 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/ITS782000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0e305693299c37762a47f7e876b70d28658cb9efe31cec34b9280eea0243f5. 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/ITS782000558.
Just a Little Bit More - Piano and Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246bce9e265d4289f6f780737c98ce3072096c17438f97f1be4323a5740e2559. 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/ITS782000561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0702b42a34ff5da85b7e57bd69a0aa6b6f7acb25c0963d99e8d510385db37f. 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/ITS782000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b711de3c4bf8b497278097ea82e7dba6c3aa99e06980d1749e9cd1a7c691795. 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/ITS782000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e12ac99bcbaa68c76374af3cb7d3abdbb848a5bd39d14e8e119274066913f. 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/ITS782300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbfbd90913b302b165b36254096da1a7ff5709ad33c412c8436a14e01c4c204. 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/ITS781901250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b12abff344da9a3b5de22d4e7a2f6c1a6f117eb02d9cfa1ede46af2d159b24. 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/ITS781901251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c741361df10fcd21ddc11d874881917c9915f12631f7a40b99b2665db86ae7c. 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/ITS781800851.