A squid () is a mollusc with an elongated soft body, large eyes, eight arms, and two tentacles in the orders Myopsida, Oegopsida, and Bathyteuthida (though many other molluscs within the broader Neoco
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 0xbbbc0de77c1c416886dace09303a99a5678d3dc507ab482e5ecdd906f007e828. 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/60e247ed-50ed-44c3-82c6-0449c5fe3f9f.json and https://artists.proofprofile.net/proofs/artist/60e247ed-50ed-44c3-82c6-0449c5fe3f9f.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 0x01f58495861ee6a0fc33e26402b76507b0c493a408013807edb617573416a1bd. 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/QZ9JZ1740807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23f233ee57c81a5b71f57aa81e0d8501533ae4baf269b9c6523c58c1bf1d061. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ9JZ1740809.
Terrestrial Changeover Blues (2007 – 2012)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692da7409708cd48cf164f928db5fe265dc4eaddf3c771bf055996bab479c25e. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBKPL1806979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0777b18770c80a8afa0a74ba436f4ae9ddff13b1d5a2a908cb5e1d4646ab5c30. 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/UK5EV1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a74675013cf3c786c5162761325b8292c3318e6cf32f597605af7cabdd55e6b. 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/UK5EV1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f67e3752c82695649b2d523a1807dbe38cfef84ebc6bc3554e09aa0cf09184. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/UK5EV1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf630d0896313e59b0847f0cb3c1b2bc24b463c6d805ce39a3821da107b1f375d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/UK5EV1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bac34b0d40793e9a80b53f87f134acfb7025b199b7910c6e63be04050abb06. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UK5EV1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5cb8f4197631a9af3b4db476facfcfbbea5bac08a1f0b8932b17667b244d72. 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/GBBPW2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1ff8605e698d60d883cd703be6c9e5e182694333d17a27acf91c6e37d55cb8. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/GBBPW2000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285f73a00cf3373e7112f7091d478cd12668f2e1b4578469001e00c9971e0b92. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBBPW2200149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c67d46c9f30c35c525974d16e3ef469a091f046136f261246ed581196c3d6a3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBBPW2200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779b4a470826b391bbdcf827a74a6f0e4128da2f344b1c22940c3013a2fe2797. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBBPW2200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c8fe57979d444e76ce0b8fbe2f7f6028c3d40dac8dca69b1889ff6e0d8bccd. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBBPW2401151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1217f53745a9b9fc022a9dc5e28ca988a8f7001c78cd8bb00d2401f73c05903. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBBPW2401150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a65b6b870168a530252094f202b27d53c12da4ab3961ad795ef708293c5cb88. 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/UK5EV1800007.