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 0x42b1d492395d9af7f48ce62023a0a826585579718f001b19fbbc90b477666643. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5318e057-907e-4e13-9dfe-f886cb9a38da.json and https://artists.proofprofile.net/proofs/artist/5318e057-907e-4e13-9dfe-f886cb9a38da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Finding You (Original Motion Picture Soundtrack)
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 0x62e82266a3d88f07900b6097bfd32a60ed52429325dd27508c3f69cc3746fdcb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLZJ2135837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a45475b407dd2ebae09d88dadfea9d29bc22a2b594a9e5435ef8825571a517. 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/USLZJ2135838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4932f9570388ce83af2b0255c4bc6e53a23e296a7f53c59f59527dfadd83dc42. 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/USLZJ2135839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff0994ba8228b91760313c15dbc74ce98744f4992c7705f8d4d7ff122afc22f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2135840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd624eaafe51c05391e08ea5144c5119eb33e603848b9ff643f102a2bf77f49. 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/USLZJ2135843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fa7cf023cf57777b487a4aa82feda7df7c09ad076ee8837f04cd57213905c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLZJ2135844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9284c395333f630d9873fe4b36dd7cb86c703644c83252c5241a58a314fb0627. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLZJ2135846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec97035ed6f77aef20ba6fd6286bd33444bb9a123a6a57123c9251f8214f01b. 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/USLZJ2135847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd8e10270fec2aba84d53affa462a72724fcc3e5439fae9f540a8e52bc2a393. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USLZJ2135848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068a1515acce6efc95d93364b6a3556af3cf3ee415aed76c86af1d77df7da1e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2135849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb511103d97f70e5000f9415594b5ea59de042de00669377c8e92c3a523ed7498. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLZJ2135851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40492fb9fac4b054aa35b6da9540c48a17e32af7d19b0e8bff348a5c0c7cce7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2135853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec18208c1204ccc51321b4d6a410090743238e10ca084d40d11c46fb10e2de0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USLZJ2135855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b991d0513879ce89ce9781a350a861c27de113c1eb942f6c7ef5db09608815. 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/USLZJ2135858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b24c0d7c75151a78cdb28ab1972fe26036d051475eeb05bdd17e4ed210e688c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLZJ2135860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048861e0114eb661a591ab4e6a1db1ce6f5118a3a3546024793775e6ca6892db. 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/USLZJ2135862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaade6781f6e289ca51f142378ea3188f2485007bcf232bb69ec2f3661b791b9c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLZJ2135863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc509bc04a8e795298d2e273d3ca5fc22b24804043867f460b341f583cd466a9d. 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/USLZJ2135865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d82ea1fcd6611112d0f90860d0563d90c43b0c4fc75be7d2a48af9eb71c8f78. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:35:58Z), 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/USLZJ2135856.
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 0x19f1652ebb2d1e24131b4457471e6af527aa0ad87b64d9e4a8868243d356bde4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USLZJ2135845.