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 0xa5edb2ba0b02f013afe5df3921d34768c8107f57bb8003e1494edd605520d00b. 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/47beeea1-fe13-4972-bb13-ed5cd871e67b.json and https://artists.proofprofile.net/proofs/artist/47beeea1-fe13-4972-bb13-ed5cd871e67b.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 0xa6b67ee6c45090a46f691e3ff751874bfe944db3093de4809fcdf020ba224154. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:32:42Z), 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/QM2PV1767561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4124ea70c429e2a2cd69135e0c02ceef51f6db95723304e9db67df32b331f09. 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/QM2PV1767562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc851815d23f84a796188f95def7e1936d0a7103d947ee1bb95f63fec2e55f4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM2PV1767567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd95f46eb69748e79611bca3198539d0e4b9338a3d05885c7a16381366db264. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:48:52Z), 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/QM2PV1767571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fc1c166bbae6b9c9363d55a43000d0d12242a4a9061488f9bf7d19af6ae737. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM2PV1767575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac09d0569134bb0036fc9aa31e8712aa7be4f5b71c7e71938fc6bdbe62910e8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ4JJ1808478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc7386628d3e6d955298922d33d73f788ac9fd8ddacccd8e2d3e3f551dc0b4a. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:28Z), 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/QZHN91912474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574482174ae5418271504edc5889e93642bc36c9943d9f4b7b5903c8ed98e468. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZHN91912475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2f7dd3389418d366dc8e784e12879cac59c14bd7882c5e9f1c527607063fe1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:14Z), 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/QZHN81900670.
Notice (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972c66dec0a0f51aeba7b57985bf97e4cde2c6a0ef208755cdb402ff4e1381c0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:02:15Z), 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/QM3DF2192682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6ce695db18e638d710f081f3445aafd8a42fc05816c9e6c1b3c469237fe6ce. 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/SE6I32218216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a127f01c383a38c4c999d802d9f45be0cf7792ac70d41442e8e9018391684e. 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/SE6I32218219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d440b39469a986d7e0c9d40124200e82e74f780fc84ff8519ecc91d237c6a57. 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/SE6I32218221.
bloody bedposts - 2022 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa790f4a0435622869c26107ea5bd4523bd02b2919bdd0c65f0948c83de2320. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/SE6I32218213.
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 0x0c2a2fa62324bd21fd4645ba66fcee9cb1fd8c0ae670be4c9901c7e11c685425. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SE6I32218214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172f6930a514f810d337228ac27ef61609c1ef5e051c6c4dccbc1987979b1664. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE6I32218215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0d9592c4afc0a3622bc2088b8d16bdd96d565d268f9f9c63ff8cebc9580de3. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SE6I32218217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d61e40a86c539dc83426def7ac9a79f49d84146192e4e1c9447cd89e33e5b8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SE6I32218218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de4f092826b8823b34b590df29017d0a31f0630c6c18e4af3c4aa0a2642d1d2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/SE6I32218220.