1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb885c54e9a51e061a86a2676301f138a83e8151b2ed3a6e6a8bb23a99ad24e0e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e72188fd-12f0-4906-8a4f-cdc2628a59f4.json and https://artists.proofprofile.net/proofs/artist/e72188fd-12f0-4906-8a4f-cdc2628a59f4.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 → block OTSBitcoinBlock must exist at that height 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 0xe3566e5a5735e4be601d815aa653dc9c0ce1cf02cf02f93a9f33c4e00d8d994e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:56:27Z), 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/USCGJ1406475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd625b2dfb7c8ccb5308e2847ca33272643703ccbeaeedfdd213085b45802f5ec. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:20:35Z), 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/USCGJ1406476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4ba02e310f9a2708b7c409bf54b67a182cbb27723d3cdda0dec0f6e3387db4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGJ1406477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f60f4693e775f3568b45995e56e226068bbcd591566bc3043caf1853aebc0af. 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/USCGJ1406479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b61d2541bf2d42c0bbfb7a51355f8495d02cbfa68dcd857570b19ffac8c2c9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USCGJ1406480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2447f65647e9dc9bb41e586adc0b07ee3f7c65f07094947ab286fd7923a4a4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCGJ1406481.
Hell in a Handbag (feat. Lars Frederiksen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef296701603e35eccc8db4b1c634ca0fcb948e9499f2d8947ac34ee3462adde. 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/USCGJ1406482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab258b3214b0c5742c64c5c092f60c103e33a2b83ab3cb34751e5591608f146. 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/USCGJ1516690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f90c1daeb4749c385ea8902560a44929506dab6a8ed15beffa96b15e9f2d6d. 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/USCGJ1516691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf056b93086b7317ec9075a34ae5619a10418f881a94da3d1405291e4ffd376. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USCGJ1516692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b764ad7e6b1dd326ce4822c8a03de25bda6767a9785702889637ccfb2697c4f. 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/USCGJ1516693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e29e39d7e7b7a3e84cf2829223de8275f3711d16a218148e3d2f8623d1c7ce. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USCGJ1516694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdaa2034f1fc67933785f840accac098dc36acdaee669e7cba2d6b543885069. 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/USCGJ1516695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5773a0a1b0abb00286821ac0ac472c3dd96c1d8c2da7b8acd51c2792f72c51ab. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGJ1516696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d893a2f766838afc0dd5302753b54524255fabca819a85bc14aa735380512d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:08:21Z), 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/USCGJ1516700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f38985c4eb626be60beaf7c70cd2ffb3c2d41638cec32b937b3b0212c450774. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USDY42286890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7bb54f5418bbbf29654ee95c23ff6b5e0b7a1bde7e6fa9eb9794922fe0e33e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:59:58Z), 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/USDY42286891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eef3a7da8cb4f42aa537784806b7895799fdb28e923829e8eb2154dd19ebb26. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USDY42286892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37856a8499a20b4e3c26e63be2285f5d1886858080b3130a7030bd8f1c39e8e7. 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/USDY42286893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a30aabb85b20179e0ddb18f6ca55e925d22d684ddb273be3e32e1100ec411. 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/USDY42286894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1822da7724575cecd3a5b5abdd66bca1a65925881cfc87d29d8fec651c58abf. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM22217501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814ab9a19191332b05500a7e27e1133829bb7799645b0cc7598414c7ec741360. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USYB32027803.