A choice is the range of different things from which a being can choose. The arrival at a choice may incorporate motivators and models. Freedom of choice is generally cherished, whereas a severely
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 0xee81d8af761fee304ab83638cdad7bf48ed5ca1436d99bca14249a91f54ae324. 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/dc474094-bdbf-4140-99ce-6419bcacaccf.json and https://artists.proofprofile.net/proofs/artist/dc474094-bdbf-4140-99ce-6419bcacaccf.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 0x9c152128ae6d8acde7ef1715f92235d64d7be2bdb39491cdc924cd4a7e5c3e4f. 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/BXBRU1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d2517e1855d2ebe1a009722ac9cdda124d77608a8bc2c060942a86b49e3c86. 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/BXTHX1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccebf7f6e0b22071d3585714a17ccd455aeed23ce8979377b5196c59b3754362. 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/BX8JN2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f4ba8d2e3ffe1ba816b30df18eea9f655e3d02bbee439e71f0a410a1c8e933. 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/BX1KG2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8d6621b1d7efa0de02770dc053a35a7ccea2fb27dd5720c88850b5489b7213. 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/QZGLM2047758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e6e3188bf945e5c5f4dd0aaa8df22030a69b162e213e60807d710c99643e28. 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/BXGPM1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9801409c2c9dcb44e3314d5abd71f0177efb52941853d9c0a4367ab490717c84. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXIV82018136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdce0975b595fce581e463e98d8a63153ce017896b248ee7e774be61ffbc27a. 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/QZMZ92096939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0890ecd5c62e0333ead5f4351d69d7f658d28d00fa5bc616b522fcbf4a68e8. 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/BCML02100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e5e82530a66aa017a4c98f1f99041e2765c3eb7e54e8da0a376ea8660113ee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BCML02100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0890ecd5c62e0333ead5f4351d69d7f658d28d00fa5bc616b522fcbf4a68e8. 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/BCML02100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d8fe66781210aaa346e9ed0c4f777fdd8bee57c6d834526096058dd0172fcb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCML02100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc8752b918cc795686ee5c9685a83cff9988f04a79ef285007dda47739e0855. 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/BCML02000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bd328321fed767a7c2f61c443f8420708f3f4b52031c719e5c3c9085aab762. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:52:08Z), 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/QZ5AB1825497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d411f573e5efa8791e3deb8b2e7e4fd95e82314b527ef0f6a2f5ea92ad8650. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BXUS62000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7449aafc5c033452b8f1b5b7b126224ed60d051a5da9b5e0d435a2910ace776. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCML02100040.
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 0x1dc9713b42caf6d69779daf8f72c4cd75a0a722ca6888f8220537595e06205fa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BCML02100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a1ec17b06e99e02fdc552ec00a5bdcc9b0da4e2da0148a866831580cd625e3. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BCML02100044.