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 0xa4451fd04ac29bce86e7ea240bd9cf2ee7853da86ebccc3bfe655e9ec7e18b2a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fbe5551-adb1-44b7-bbfc-b2d899d437bd.json and https://artists.proofprofile.net/proofs/artist/0fbe5551-adb1-44b7-bbfc-b2d899d437bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Preternatural Reality / Feel My Temperament
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 0x03d2350d470774546b232c1d26e00b697698ca3d4dd35bc4f7b84102ab25b730. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/US83Z2000362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04e2af2f1ea2e0cf6c0c0dce0321f89580ac30b607c5966aa9309557f386722. 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/US83Z2000363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1351eb62e777759db073e2d034e14a2a7a4c90a70922907afc2396ae388be9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US83Z2000364.
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 0x1a3e361a876e3e1d91f574ac1c06f1b979560c3e879447cbbbbc662341bdab08. 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/NLHR22100784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd057fe29599c17dc5cd98c56f83fc90be0bb7f90f19af01ccf53576e576ac640. 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/GBEWA2200990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03505cb0254b0d691676a8f3d9045a1e80e1e9d35dad5007dbfb981c080278c2. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBEWA2200991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808e829e3309a24df38a0d1a0822aa31aafbfe888d7272755163606b65fb20aa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBKQU2249893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890ac9d83e6b913189bc71b45df53e33b219bd99cc5db86bb2cc7f24e37f20a4. 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/GBLV62211425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9949e792a575a8a0262fb322d0a62c0bde46e861f1d2c875f93d4a8a6f6d88b. 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/GBLV62211426.
It's Always Been You / You Are Never Alone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7726393c6a9141227ad3877bf8ac75971183b4c6642263c1d8ffa16aff0231. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBEWA2405111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1873edf86b75fc357c823dbd9ef1faf8bb4787d01c8c39a6433c98e9ee0c887c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBEWA2405112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf922936a6abca9ea380ec23b85494233a5a912183c0b3040ef90c1b446f7b3f0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBEWA2405113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651504d49716570c54438b1e6f6992d91456b101d00304d3335adc7ed2eed29f. 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/GBEWA2201462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cc90e876e4e88c3abbb64968e7979f1fae6d05fb55267f3cf23435d2c9e11c. 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/GBKQU2290931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef6799bb9fa9ee875997da2541be73e776e3c48f82dc947bb7eda5ba895657a. 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/GBKQU2447439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c6ea9f88f89455a63b6b4b026405e909b0c5107891bb79a24371362e51ae94. 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/GBLV62301333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f7d9c20f9a2fef53d1dafe86ee25b9eeef19822a3a22f3255d26911f22eed9. 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/GBLV62301334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ffe974bb74c8f899d843fc5d9f9944ea291e8b47c6e06b4c7e4646c7d1f227. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBKQU1991426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd383841037e3884fb99e8943067b4621b9bde86fea8f8bc7f425d0a415e3f16d. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBEWA2104154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a9902d64b88da485321e775f016177d965d6a162b0d2660b32af5935496eef. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBEWA2104160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3204ebd73aa5b022cc80fdff2ffa9dc79b225aa8f5709fa7537b8617a63bceb8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBKQU2443574.