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 0x359a6ef38ea36273db1d8304f9f774bac330020c1bb186ec22b92a1de9d4f3ca. 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/4892c94d-42fe-4b69-9f9b-4133345104d4.json and https://artists.proofprofile.net/proofs/artist/4892c94d-42fe-4b69-9f9b-4133345104d4.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 0x0345f1ef1854ca6493d75c2c262479c4171c68b87d707d506950b8f978d4f632. 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/CAENV2488954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e4fa350ef78d4b5ba1d7883a993d41cd8678eac5b8d42bdb08f83f42cf479c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:16:31Z), 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/CAENV2488955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce64a81482e8e617a15aa039c301f71128ade5686f6ed8a0b3d5910c6cb016. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/CAENV2488966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34de60f19a226ea821fbeb8c5136845a475abae5a6981ffbab00091c499e694e. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/CAENV2495209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d8f6b757f2ec47214596358ec3eb5263b8265a30ee32e4bf8c4575a6acfecb. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/CAENV2495210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd720a495ab7e8a82f10ca575083ac310f7162326cc527286655b937912ca1f0c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CAENV2495211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc469395c975c426c81ec4f739470d282bc2ea78566301cc229bf8c425b428f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAENV2496987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6197cc70582e12acd6b25dfd0da866b08d76ae24ac19bcbf1c090ec771a1b8b0. 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/CAENV2499364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120b7825dfba5b80f42755e755048c5164c18af1d18e9f828cfb6430f69ce989. 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/CAGOO2402463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0676ed38a49d6152784382def490f9f61a8b6a479d0247fb183db226c44493. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAGOO2416813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0f136bb2e031278030554307bc762d3d51a31008835f6ecd55349f68a4f98c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:15Z), 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/CAGOO2460499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915bedf7e4eb99ee5186f3edfa5709338e276532cc9ee5546b7164bb844d6b4d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:23:13Z), 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/CAGOO2460500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2768ffb2dd3964820d2c1e1efde1a811ccd5098eaea8cfa6857c5816742dde. 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/CAGOO2460501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa236169bb3eac5ff7d96fccc27a825837ec415ecfefd621e2368c553da8dc11c. 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/CAGOO2484804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6763828289adbd5d30da1bae73d9b925e9c20136c81b4d236d42002a56d57ce7. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/CAGOO2484805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f12b0f1b281325afc85870e22625ac7430601dafdfc755ff3aecaf8b097b12. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CALVP2472848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe136747a8bd348b2ba2fba1112b33ba8ee4c33a680d9d38b10e5547f49d1a378. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CBEYJ2411781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4375d7f841dde37861c812ef3e690e9f805d0e1c657e8b36519f6d50e2584c74. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/CBEYJ2411782.
Bewitched by Winter's Embrace (Music Box)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a7a9a284842dc826e2959170d12cc69a61962ee81ad31beaffb59749b023db. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/CBF8B2473225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453569c63b36c1f94d48a9fff372873a3ffca39a19b5a16ee8aad6c1989c98a1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CBF8B2475514.