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 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 0xe345f437513ef3ea8011eb58e388f63241116244116e46f3b8ff41125e9afc0d. 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/3eca91b4-1f60-42f3-98e8-046d2ca9561b.json and https://artists.proofprofile.net/proofs/artist/3eca91b4-1f60-42f3-98e8-046d2ca9561b.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 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 0x9011b1bcafeeb5bbf2dbe62e65306828efc81f7697435bf4e5c82eae8e199dba. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USI4R1226255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bb0ee176d80b57a2c89375a4a71ab82a4cff3a66408417e24e44de01f7f07b. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/USI4R1226262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b40b4771d1babb13e83a2c611e4b63b6817ac38cb2b7e522d99dc6fbd8bcec5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US6R21390876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e171f74f572dea4d91ee03bb46130cc036f7fb5b11442b6a4f8fb3baace3609. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/UKMYK1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ffc88595a3dfb9a6ef6cd551acafc77df16a524d1e1b8dde3449c27d42b9d1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/UKMYK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203a84acd4d07c489d0ee3574462df74b314e79b423136ced2c2acad91f04fc3. 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/UKMYK2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66115e09a79b6dd3bb8edbc3aa5ddc3531e0abe60e249d53e20faed650943290. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/UKMYK2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7895ee2060b3f61a41f80c034cf3afe74401d8548cb17c27467c49d389e20f5f. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/UKMYK2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec999ef54bee5f040e12e1fa428a60ff8e057c16ec878b8ce72e43f6941353a. 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/UKMYK2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a85205b05d85af9fc35c002159bca45766870c6b523ffd16ee0be62167dde3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UKMYK2400006.
2 or 3 Drops of Height Have Nothing to do With Savagery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e0cd989db06dd401ff568647193c389ec94a9d173f4072416699510ba1c117. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DETB31624053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf609e9c8fe88a31b607e602f0c03cdc844f07110eb9f31462c90eaef2dc718be. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLCK42401643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4704fcf0530acac711593276945b58e7582b9f33b87451fd2b70a0248f7a0d. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DETB31624051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0c5cce91e38ae17f843c470fba28c331563ba54c904939fb5ddb548884232. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DETB31624052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985dde3bdebdb7e3b36fdc13f9171484fa95a068886c75c54bc236971c4aa930. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USSUB2246617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5e783856ae1bae184d2af757123dacc65b1883214a593252b921a46622790c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBQLP1400713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8027e5876644e8269554b1c8fbbcac07b5e4feee9e03634f876ae0e9b111683. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEG931691672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0393348eb83a6ea3db75c615cb3cf2f94cc2362c626b62729617aac29f0ec32a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEN582200805.