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 0xf3635775bb42c2fd9b2f0ba46c72be391cdfcb2d69b635e246a6d51cc381faa9. 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/830c793b-0f42-4bf5-ab1f-b9c3c5129b3a.json and https://artists.proofprofile.net/proofs/artist/830c793b-0f42-4bf5-ab1f-b9c3c5129b3a.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 0x372b5a7b2525907981b48dfef2d3c46c444d43605cde12090265f7fac69fc412. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BRJZQ0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085acfb25899fad25f93a50501c0a79f8ad5d4cd47159d3a4edd56f4b7056f67. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BRJZQ0700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b3891ef0a7080891cc1fbf032421059fac3899b3fddd9e2584585cb563892b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRJZQ0700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18a756273b72cd7b61c5b2b247d3c9ea727bbd53ad9b6f5acc2c35a3421a6a2. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRJZQ0700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14201e2f02257232435d0ac1cd228a0ce2f6294a1097ca1230afd752d11e87b0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRJZQ0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442b40ca3a58f088c63e95d63343a775e4018d33a43c0078e2469ff4323b7756. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:51:25Z), 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/BRJZQ0700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0776476e272735d1d226bc7d734f60d523c413a9f5770a6a5bc70de39491a1e8. 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/BRJZQ0700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1932caf4c6ca73585c97fec7c1c69f12782ddf05ae3e03d005bdc1fec517402. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/BRJZQ0700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6123de8eb1dcf74119e51cf66e6f243d7100ccff8ae9dfac10b839c59b4499. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/BRJZQ0700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d5cbaa61a0ddcb7049979c5dfc3a8ca2a42b57f440af5642d6f057f8f82d33. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/BRJZQ0700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9455a4c322dcf9cf38a73d62e611a3303eee61791ec9278beaef8581242dad60. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:26:13Z), 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/BRJZQ0700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6c47236189749b742f781b88ba34669c6377b1345705e97db2047d57b6fcf. 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/BRJZQ0700019.
A Society in Which No Tear Is Shed Is Inconceivably Mediocre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2bf232e1dc5223420acd0c1e77ac60621b9f87f3ccda629d370e2d723c02e6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USLB10910012.
A Society in Which No Tear is Shed Is Inconceivably Mediocre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2bf232e1dc5223420acd0c1e77ac60621b9f87f3ccda629d370e2d723c02e6. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USLB10910012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f507ac813fd1923f29c56c295c6b8892c7a46ac94bd2fa53ccc2aebdabdec4a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BRTRB2305781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcb5f63123d3b6ae937e7d8de01f43ad6bea496649c5ecc16055e03e5b40cc6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRTRB2400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e5cc4b06e193a1145ec7a7d2afc26520821f4a6dcec3666d5fe99c7e3d539d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/BRTRB2400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80752d8f319bbc00c500ec7b20105fe6b694f02f6d34c4cec5f2e429f90b9517. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BRTRB2400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab87e681a51f4158749d17a6237761cb36ece9b868518fb5c27e9d34434b83c2. 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/BRTRB2400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979ec0a564b85f923f2cbaac8bacc328259a2ddcea5cd87ca8106d1d197bf901. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/BRTRB2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6252d772a4ac2e7d9f89f97d522517bc8767a74f0a86977f1bffabbf188976ed. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/BRTRB2400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf6dab00551652524b5ad9578b1e1661bc0e2e0c890f6588db5930b5ae7aafc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:41Z), 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/BRTRB2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849cc0f395fa2b341ff84124c9f5e67caf5f1d554536f6427f23e848484b2919. 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/BRTRB2400131.