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 0xdc85b29c735c33d10c67e205db9f09690879f586d884915cc32b604eafcb1a2c. 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/2f4106b2-6f86-4fb4-b6b2-79d43bf0d55f.json and https://artists.proofprofile.net/proofs/artist/2f4106b2-6f86-4fb4-b6b2-79d43bf0d55f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deeperfect Ibiza 2016 Mixed by Elio Riso
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 0x966fc73f0743d332c19d6108cb45331940043f69eda89d160822e92797b9bfa4. 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/ITA061301273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277f4bcc354c828b95d99b444b2d710b0a602dc84c15c03c3dbf29d6e390bae7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITA061301279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9b0c395e47261f44c8739db7d0c64053c4ff13324d10ea52ea3ce5961693c2. 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/USHM20919336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e87bb30da79d437edde23846498b325706a3ecb3bfebb2ce48f47e89dcf91a3. 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/USHM20919337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaca3404f0570cec72f24d70b25cc1524b09262f98dfc2a004608c5b2d20e6f2. 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/USHM20919339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37330a349442e58c1764ea8ede29fa1caf9815ca689a59715059215d1b35f71. 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/USHM20919340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab7c711e51d8d1560c7f1e222869da6d043272ebd5f133c54259d3156dada25. 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/USHM20919342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a9f57926c9dce97b845d9b3d5d92bc47556a6235b766cb6b09a623ed022dcc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USL4Q2371807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0097f17da8649af357af7a433beba7528c83c209557a2217027325e9922d7e19. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USMH92393913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeea0888e6ae00ce185b949dd52e75e0d6ad1841b417a4ce585e326b0a409d4e. 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/USCGH2283221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8731a665e59bd4354e43024ae73eff922c2963df85bd1ad80a994b5c55c47fd6. 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/USCGH2245863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e4f708057e7b4fc2839eed15a467181a9268609a824d854b85a257abc5ef20. 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/USHM82100559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d55badaed14f667996cce220fcb4b3f13be395448f7d041726183d6ad84ae53. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USHM92100881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d657ee3aabc757dc8d522d072160e552640106de56075e0251573ede7d497e3. 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/USHM92161235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074a5f54a8189f5b86861efd65fda9a7acca098ee9ee508492577220de52cd30. 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/QM9A92020036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d657ee3aabc757dc8d522d072160e552640106de56075e0251573ede7d497e3. 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/USHM92161235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d55badaed14f667996cce220fcb4b3f13be395448f7d041726183d6ad84ae53. 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/USHM92100881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e4f708057e7b4fc2839eed15a467181a9268609a824d854b85a257abc5ef20. 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/USHM82100559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59d48808ae748560a2ad4e46eccdd5cd2602f33707f4eb69625a28b3091892b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USDY41765131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e29b2c74cbd33840a5af1abf58a455f91fd72aea8e04a94f9ed0ef290ceb9c4. 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/USHM91499737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbce7fdfd29eb639f4e848f3bde96dd4dec5f5ae2c686581f16e692e9dfaf90. 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/USHM81217586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4913f93d38a86018ae1bfffb010a9a2caa47f3b8a9ec6facffd1547929bbb1. 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/USHM81217587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5ed6379e4c47d7a2a9f3954f34602fed05c70995f9d83ed479e2ac2bb454cb. 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/USHM81217588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5f09f54634e9f513946b090e943042f26cb937aafbc5f10799e3439d940bf6. 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/USHM21205461.