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 0x229b15d9a4ba3b63b883baae7a32cf2d43094203d2d68ce4703a41a53d094df1. 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/e603a142-2326-4538-9d02-a1ddf17964e0.json and https://artists.proofprofile.net/proofs/artist/e603a142-2326-4538-9d02-a1ddf17964e0.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 0x8b00e84939c8774fc69d0c095e4c5cdeea7ad63cd77d4e47cea02dff33bcb1e8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ATV112300599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41336dd320766893176a80788372ea21c7104c124a01520c2fb021c49b781d2. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ATV112300594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851dc74c15d65eefdc42b3a0302d0be8135e1f2103484c486d257221334c9311. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ATV112300597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83408cb89a7d1f6ac117ba05e66627ce4b562cf1c1c3fd13c924f24174e1df6a. 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/ATV112300555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49c83578ac6cc378d3f4fe75ee8d3d38be364a48ceb7a869a1ced4400ff924. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ATV110004020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cc8a77bc06b4490df71598520ce62ffb7742575dbf46fb7e209a359ad9d253. 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/ATV110004040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa937829589d422b756842c9e5c501bddd466b2d5edded2af412ccf4f4f7b700b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ATV110004110.
Unsere Erfolgsmelodien - Alpski-Strings instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a063f1baa7def83c06bf906b1e96fa6ce959c678b3a4f072e564663203eeddf. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ATV111057001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedb84bf1063fcd92061406c36b3edd1399e91bc2823deeb0b2efce84b039730. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ATV111308006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868f2fc4f32cb395f521002439f67acd9ea4d222083fb8d9d08398643bbcaba2. 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/ATV111308009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bbdd6725d5979ac9bc233f56deb3515a04e57b098db1d1418a67322ef095d5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ATV111308012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9fd4d0bff44e22cf7cb78b44809ccd64ab0fb22f45b0476c07252c46e5e884. 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/ATV110705001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe959de3fc4194eb035385419f186dd347b15d15cb34ba44c19c8dd714d2ce08f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATV110705004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a06b8fe03bfd534686007703fd1d4df8067899a242af6a735e252e8c126684. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ATV110705005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250d269b1af5e73d9ff811eb40d23655552d8244de78dbfe1dc0951e4949240b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATV110705011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a60947a1d831be939a45b34fb6f6decd38767142287420d4a3c4e7e9bb28f3a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ATV110705020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b588661425cbb6326b3ff5b35f805a44e80b2ff6b8f264e342f1437066ec261. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/ATV110500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f294bd83e83394649ee7a441a86bc423dd17bb7c94c617d9f8b06a2b921165. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATV110500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c20f90c5de7788934fa9248712434fa9468d415e1475cfc816ed8c66339d51f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:13:00Z), 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/ATV110500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847351748b3f22e0d4534efb4d3f8d1c1024463b59d5bd3bdbc61e88a53c192c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:05:05Z), 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/ATV110500022.
Ivan spielt auf - die größten Alpenoberkrainer Trompeten-Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eca048ad5a7ed8f2972f72edf5d71f31a57b24dbbe9fdef5e0c5c684e4412a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ATV111000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920b68238f04e74921bdfeb603e152ee1e8aa9604521b8bb723395240336e77e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:49:44Z), 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/ATV111000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340ba23530ecc6b5e7aca0790294239b6665327fd0034b77afe40d893986076d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:16:45Z), 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/ATV111000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2ba59a7adae3170d94bcc73ecac46724f8e208817cf65fa4fb24f62a87ac02. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:51:43Z), 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/ATV111000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b439bddd31199643dd892e9a6bfac929a9ce87e88b5d327de1bd6c1976774e7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ATV111608010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bafd4bc6f1df6294b859ae84b6beda139d0a460508f2da5d8505c89c643b36. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:08:07Z), 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/ATV112200822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c1fbb61c6ab35d0a6615edd0f6b25b674a54144931883c6e9ccda516fdb3dc. 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/ATV112200832.