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 0x117d22e343eeac1951712d5c5fbb2d83ccb7f4448a60eb2d4c4989271f0a5b90. 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/e57fc91f-ad96-41a4-b6ca-406fe28c25b0.json and https://artists.proofprofile.net/proofs/artist/e57fc91f-ad96-41a4-b6ca-406fe28c25b0.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 0x383efa93be17f4286c23cd537585d3a8c69fe969307bae1fb5a1d5eb6ab3cbea. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PYC842302012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd489f78e823651adf16eb43c5c3a70fa90cde4de0c12273d8099067a1615f4. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872c7aedb0209664d1277517cc0978704bf6dbdb4313bd598234c55a588f2893. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44457d256de245ea4caa6ccdb5461b47ef2c9a82e195363e6467e322bc5f73f2. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a8f15b0137879ce6f03168138d64073e8dcacf661a80badabf6a1b5bb8efa5. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa062019f7fc1f87a642becd37d1f26229ff4f02a5d6ed56f5bef06b47734b761. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad38bff0b827ba1a9f8e46723e6e824fcd119ceefd1635bafce23ce9e13dbf8. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fe7866c134ce664b63119d897f21cbb6147b7391911277def1742daac5098e. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949092c47ac428af48ce8cdd76a8d5b2cab054eeef0868d82c1e65f6da06287f. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ea1796b192e1709904b290b66de98cfb1447229685d4d65a8a120451dbaabe. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb78c61f8e958bbc318b5771d0e19aa31232cff34dffe69c59d279154b92bee2. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945272d2d984328a09564ec3d02b08c7b84caba87d6e3f301e0fd3128271fb74. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7c3861c87b159393277f9652aa08116d9a43b19cd14c751d525ddef844750b. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b650f58a0fbfae158fcf5398f0de71c25db3f5dba624cea54199a173d38ab0. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d18e1ba0906e682e805cc11f47fb717aefb049b0f40b54802c4256529f8cfc2. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/PYC842301916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b4b2c38846f88600951f1ff7752bac79c0e607aa2661afc8a067316b502d0f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PYC842302180.
Tu Quiere Un Apartamento O Quiere Una Crv
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54057063eef3a09207acbd80fc20b6a925f53c74122d5738ac06bd8e6bb8793a. 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/TCAJS2586042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b68507823a708937a5a0f6cc2e6171d873587f6f630fcd2e8104c2a901d036d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT65Y2518153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72aaa2f6cdfe3b089af1947fa525732211671224780ac55a74d864e399f055fa. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QT65Y2518163.