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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 0x97158d4dc21d70872cae9de6559d2bcaae9fe77678382d203b31458e8c6f52ca. 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/2ff66667-5d55-436f-b22a-a76082789d80.json and https://artists.proofprofile.net/proofs/artist/2ff66667-5d55-436f-b22a-a76082789d80.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 0x976c68fd42e6595e2f4bdc8c4f8b3bac5ca940781e699bddc4b9b2f8f828f37d. 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/USBWK0500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c577edae272e7ba2699878b74a33a47e08c300618ad392b08d108f5af51366d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2Y0400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c90f8cb93416224e4b01b0c69f77cf990226864717a445b81e915dbffa460b6. 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/CAUM82000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1719af37fa84a9c2d5e07a05718beee0583247282767898b02dda65806c134. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AUEF02202161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1719af37fa84a9c2d5e07a05718beee0583247282767898b02dda65806c134. 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/AUEF02202161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1719af37fa84a9c2d5e07a05718beee0583247282767898b02dda65806c134. 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/AUEF02202161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766b257f0c4efb39d8365df3f2ce42835b899e7754a8a4e3860b8b75589789e7. 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/USEP40380103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce2096984c94a889d0732693364e2f469273fcc24b205c16f0c0621b25a6045. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USEP40380106.
Orange Is The New Black Seasons 2 & 3 (Music From The Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6a6b84549ba9bfd97dbfd7c380ab79da141e8d13b0a26d35d8ac0320ad939e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USBWK1000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b086942b8ba70774a3edbe5c301f3dabdc06bd55c0b53e5cee0872a6df14aa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USLZJ2122930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40a70883b0ca27d0b2ff62e69948d2feca70e324414053811342a86d91fd727. 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/USHKR0918403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ca35bd02ff58262e9a3d1f4c6f0b018297be7c6438f5bdb3d3db875f94b145. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US25X1091922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318adf112aed8ee44483a82e6731d8dbe4b97a3d1a733c7b0faf65dc9f193245. 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/USA2Y0400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd01b9bc24e3c3c7c35e82d9a9a23231790dbb4748620a38f6bcd4929aab0677. 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/USA2Y0400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355ed4f332f0a62d6f7ca07b6a7407b2bd56afedb8be4189220fb1a5498de4c3. 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/USA2Y0400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ade785e2fad0a9c039953feffd3b6a87179378910868fc9fe42700565ca9b76. 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/USA2Y0400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5fba1fd6ee8bb9b8a5d503cb31ce4c69b015568f3f3595512073a4f386706b. 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/USA2Y0400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d345443772c9961e435d1fa6aa176ed597aedb836f8a3e1c38a11f4ba3a8e98. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA2Y0400179.
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 0x3aab3bfad43e89b122687e4136decaf46db6b7d44d1bf79b1ec992de069fe2d7. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/TCAFA2080676.