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 0x1aa9af58f96aaa14986328818931439a928af57332b691592d9266b9a00d8235. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9aee7d7-9f14-4c4c-9780-cedb5764da37.json and https://artists.proofprofile.net/proofs/artist/d9aee7d7-9f14-4c4c-9780-cedb5764da37.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 0x0061b3a5eaad642aeedc67f3c022d91e691d63a234db58b2de4981c6c82e8ed2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GX5K52100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd236ea5488fcfdd925d9eddb08958f2e9aef94b25e67e67c09ed30445449f40. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GX5K52100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0f292dcb5d41527a2d1335f5420bc7c3828b39820b5baaf5248c524dbb354c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GX5K52100008.
What's Your Name Again? (Live at The Half Moon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad6b25788eb8b3e1fd2d9b494cc870d4b52ebbfd477af03369872550eec9d65. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:27:55Z), 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/GX5K52100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a424f57b7afed6767f6924282da7f12ab3b3ebed7fb77f6a76143498fba328. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX5K52100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284dcbcd4e04b627225f039baa17d77bdfad0dcb0c469fa92084f3577e1995f9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX5K52100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8469d6dc0f8cd1868a4c5ce9c4e97130b18634059c5047b0029ebd46b56877. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:03:52Z), 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/GX5K52100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da1fa605fcb817e14cdb7cbe7a9ae9cac506625230213264d133bbd965f8cbf. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/GX5K52100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d74e14c67364b2a3d24e90ac6ecfc5de5990a9b638a3fbaec5673b77936d589. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX5K52100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e404191c1df9213a4fec880a4129436b4c47f4c15182da4164b0f847142990. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:25:48Z), 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/GX5K52100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e4d3ad4cab52824d3756d05d8a2772f12200f1ac9123bc0839070874fede5d. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GX5K52100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a476fb52cca12d810cdf03654ec2ad576d0acd98861f04ab9abf8ddaca8c3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX5K52100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf714fa058aa1feee91ee5a4371cc7ee4c6be2f7205593ff3610c83e829d8743f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GX5K52100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6bee456cd04d4698666d871caf60c215282945d8037f4ce5ea60cc078d7ebb. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GX5K52100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6537d18955992d0e548bf1f9f3715b80510afbe1117bad630964659c0f0d9d42. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GX5K52100073.