Eggs of various birds, a turtle, various cartilaginous fish, a cuttlefish and various butterflies and moths. (Click on image for key)|right|thumb|link=File:Adolphe_Millot_oeufs-fixed.jpg#Key An egg i
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 0xb29fc43163812fabcfe1d1dc7dae2af7c8046065f1b8967a73e250bfc2a7b557. 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/8070f8c9-5445-409f-a99e-85ff329a15af.json and https://artists.proofprofile.net/proofs/artist/8070f8c9-5445-409f-a99e-85ff329a15af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
putting a spin on never ever getting rid of me
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 0x0d61e66942e9194a353cfed170d3afb960969be03c9b8e051126aac6293d25af. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:18Z), 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/QZHN81919218.
putting a spin on slow dancing in the dark
putting a spin on we're going to be friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf921e54b2a6c4ed8b367e0c2d758ec83a67245535d477760e0fdc075f3c073d4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:52:29Z), 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/QZHN42044678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92e53235a03e5a05d79224262d3fbfa43c20edfd427e8c48574ed9bf1e2817f. 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/QZHN62053020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171ee7006881c922c2d8bc97d998386a5f0d113b7b4c8ea85d3c2fc35b17682d. Chain 2 (Bitcoin): anchored in block 957685 (2026-07-12T09:26:00Z), 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/QZHN72064248.
putting a spin on idontwannabeyouanymore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c6079f0ebb68f2c82306db0363c3f510e8d2a90cf57e670b872bcbcaebc549. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZHN72060345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc97eb22b414ac5d1811acba264b7b4cb7e58f0fed1b21d207013db8182d647. 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/QZHN72064245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5b1f4ca7ac240eea043178c238a726a06b02eae5e1fee153b7e333fa3c65b1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:03:34Z), 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/QZHN72060454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc2157a148d9c4e702962f2e27165728575b3528f27da5c81c4274451025513. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN72064265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2ce604a2ffc05475e57eca2a6c6f9e6407fa4e2dc00b355fd010a351c22737. 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/QZHN72064239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a44a4725f8e6d7763e4e472def934f33213509ad85ba8b670a2f8efaceb7ba. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZHNB2051043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950ee9c9562bbbcae24899c50e3bac6e2657f748b88fea1f4b3a0f37bc20726c. 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/QZK6Q2067616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c57d0a20195f75e2cf1d5c6fc0a6aae0076f4a289b2e6fc6b5a7b7d4b33e518. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6F2091912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc569cdf2ca95cd64b6e6826bd27c553aaf6acdf0d15b31bad9d561321bcfda1b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWT2002663.
putting a spin on all i want for christmas is you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e953cf8d28e54cdd17e9e9bed08a1bc514c71a8a3c4d9314591d04be26c98be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPLR2044859.
Putting a Spin on Hey There Delilah (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbadfbfef560944a9655581f375db7ef16428263c823cdf7fa3fe1fdde5c570. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZFZ72166612.
putting a spin on sugar, we're going down
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65084f0f9f86b0cb9ade212236130836096e04e2fa3e0588822ce1c31f3f485. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZES82123883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad5055f4c2dabe14d27700f57c30424baba4a587b38f3bb1915cd4082a74e0. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/QZK6N2147971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc25b539ca41043e3b1b4bf7ab75175875ee3526952960f1e1f4120504ea29a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWQ2179753.
putting a spin on somebody that i used to know
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c0b94fd6b0076ab6ab0580d645aea6ac2dee333483c32dcf16c1b99ff485e3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZRP52145461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4182806a4f3fcfd2b2d0adb59041f21234cf078ab65b1f7803855d1d1ad56b83. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYX2279037.
putting a spin on i won't go home without you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ef9b49dae44a46fb3d940d634d774571d38011a1e58b8513a8ca04af058aa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWU2263439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593fd525f4231ad29d3b6e5e8ce88eb8f59ef328357a2f524396da3e1764c483. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB42226749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4fa968cee1303c2152c612e1a94dc7494247246cf8f6036ab57627d13e9e7b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN52326098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa085ec44988477eb1e0868f9ddf8325e9794d8051b9c6536732038d8429ef312. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/QZRP42367804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93d3336b203f14ef3d331e713f198ff3fc732f29f00ff3dc903ebe706972aa6. 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/QZWFJ2453773.