thumb|Winged "" armed with a stone. Obverse of silver didrachma from Phaistos, Crete ( 300/280–270 BC) (Cabinet des Médailles, Paris) In Greek mythology, Talos, also spelled Talus (;"Talos". Random Ho
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 0x104d7cbfdca6e3552b11f6a5fd9ddbaa023bd4399e480447267b902a451a8a48. 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/84309519-8ae2-4075-aaf2-b6d156cafd7f.json and https://artists.proofprofile.net/proofs/artist/84309519-8ae2-4075-aaf2-b6d156cafd7f.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 0x9511c7b1ab32682e8565b1d4d84fe60ccf2670a6879035efa908038386beed59. 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/FR2X41432904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94d1656256c5c82d44097210a30a28e85d54582d3fe83d699c7ffdef3a11c92. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR2X41432900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d722e812b082f6cc6bf3dd22a962629993c4293435847debe3db52bd8cdaa4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR59R1618648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cf0252fd2b1a738bbe07f0ccfed5de04db3d77302fd06834cb1ae238de5e49. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR2X41701752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025485b5534cbc6b505db9905f8b5c84a69a6262ebe181de76522b286eced054. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:26:32Z), 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/FR10S1792627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c094bf24320cb81c5a5b88a79bd10909895ddacca317dbd881a623556ec3fd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S1792629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e12fe055521e4918ebc145e747cb5bd8271006a71170e998f45ad4957b71876. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/FR10S1792631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d1beb1fb27e55e41a18f8b9c53216c11f25a3c94a7d08fef1ccb918463ef0b. 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/FR10S1792633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e6ecb4405f6114d8fe5405c2bed12099b9fb37d5fd39e80ff8f1e9ca8577d8. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QMRSZ1800561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe842cd304bd8e5eca876cf5736ede05cd0f10fe9d0fcb0246f4a59857d7674. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMRSZ1800562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d483af704dfc6f18685f38aa6547ec1a000b5b64bed348ae7e515bfb82e68a. 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/QMRSZ1802659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66994b2b58d9282ab4cf3343d9746cd8c2322af9a6bae56086c36043ad78cb3b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMRSZ1802661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eac9d9b0206be6a806c56ee62bd99271231cd78697c626f9f0362557aa882b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMRSZ1802663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae6a074305645f70ccfcbcee639edba2929d785c48255db79e28ddac09fdc59. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMRSZ1802666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6910f36fda2899ac46bf609f28fb16b255edb15b582502690f2b7650bee8720e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:14Z), 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/QMRSZ2200451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81405e186e84be11002c1c38fb1b8761dffa90b3cd2b2a7876198751c806608c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:16Z), 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/QMRSZ2200454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667110661dd96ada06b44ec2eac297444d4f528676302416af2e7bcf53b23ca0. 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/QMRSZ2200455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118ec8d0d0e3a78bdbb5b42ce0d23b8a2cdc58ed47129a6200a038261b1c5d0d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:41Z), 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/QMRSZ2200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7519329f6085dd40acde33d18e2dcec989fe35bb58b67bed48d53950001a1a5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QMRSZ2200458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8923d82a92a85ba028a46ff7bb899524fd57268cbc0f7d7fad03b91fefd59490. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:00:55Z), 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/QMRSZ2300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ebcf379921f8d6ca703d95064e6f01f24c56b89d7e5716618884fce9fef34e. 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/QMRSZ2300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b237bb704840cdc50815387dfa8cd642dc52e76018e7995eb268380a56c461. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:58:35Z), 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/NLRD52406893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4758121ed7efc944b4e8ef7b23a0802d5349f14491d396277c154269d319ab. 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/NLRD52406894.
We Didn’t Know We Were Ready (feat. Niamh Regan & Ye Vagabonds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae55160ffa3604b69687b5c182bd3926599d47d1992ef3ce8de26a5d8c9ae1e. 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/GBBBA2500001.