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 0x4af5ed0fe22b24ec10c93e03647f05a869ea6f1f5533b7b1d18e5c4a15b04da6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5c5d449-8300-4ac3-a540-6ad74f7b18ca.json and https://artists.proofprofile.net/proofs/artist/e5c5d449-8300-4ac3-a540-6ad74f7b18ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lullabies of an Endless Adventure, Vol. 1
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 0xef43ab077516e0b4d3e6cf7848f75be7f22f4a0f5d0983bb695ba652ceda8b3e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAIZ2497244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c8678541e13efd712ecd2d5754897dd8e4d70f2f9e19f9ae5d7b4bb7daabff. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TCAIZ2497252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d679de4569e401cb7756cb2c0a84653d7dffeba03341bd99de0c14f709b370a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:53:42Z), 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/TCAIZ2497272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6cc70f9c690cd7ac34916e2c728c65676fd96de6f43abce0547e23918ebda0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAIZ2497265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8eab14527638af031ca69c07b37de855a1c2b2ab046b1aeeaab5624776c646. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAIZ2497277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586a20579ca98bb589850b96eb6fc671ab2647d488466702666647e95b513915. 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/TCAIZ2497292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe340e25ef75c01e919fb1270480ce1aeaeee825e1303569ff58cd05172ae96. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:58:05Z), 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/TCAIZ2497297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07912fe408dcc561eac70774ddc831222ace0517efadfe54a8fa750bc6b6ec4d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIZ2497305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c71d296e5ed03cfa030c5e19f85e84427a917f89f2049fcc192fd67ef690e34. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/TCAIZ2497308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242298a49090d25a1dce5bb2c5d9719a83c50b0dcbe55c84bf3923f150a63c2f. 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/TCAIZ2497313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658820f69152fc619fc640636f2693f2b77124d34ee902290dc4041766c2a3c6. 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/TCAIZ2497321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c4d920ed9c01b4d90471d8d694f6e2b4b3984e137fb1a39bd58e944b723781. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAIZ2497324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56fc4e5c89799623cf7340f0065c2019de26c9d1f26da6cd62f1a4127688cd2. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCAIZ2497344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f933b2d5d1baf0a6c2cc5d269c681934a8e4dc21d5e229677eaf6bd478c5eb3. 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/TCAIZ2497347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12830509e1727e8f83ef9e5a28e875e7ddd011da0d944bb7ca2ccbd11ddda14. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAIZ2497349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381fed51f4b3c3cab21d9eb6c03b890415ec6c5101d52a9bf19141fbf5bce71c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:30:27Z), 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/TCAIZ2497364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e29a788638a3f7b5f992e3f50de48c4670548042e014015719e4d5fbf90ca0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAIZ2497377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba3b571bbe385b3d773f3c8b72238e0fea7d7c6655403aeb9620e4a12a819a5. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/TCAIZ2497381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbb777891d6121948134403307856b507776d8255953a75adaf4d3a5069e9d9. 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/TCAIZ2497384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a22ddc8c8a63e890beacfba1b70bc62f4474dbce5009da65957b4eef67c1730. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAIZ2497387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99bf6adcdc7007d239d4bc00e592327871fbdbed1c8723de69c97e36179ff66. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAIZ2497389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd475bf10ec829a293ed73ff25c6c8eb6b8168ab565d63d730d65dd4e5aaf5d3c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:10Z), 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/TCAIZ2497397.