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 0xe00a8f39b5f9a93821f2fd8ff4001dc1535cf6656d86a8d657f8bb26dde06559. 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/f943d1c1-eed6-4762-88d7-03ae8c865359.json and https://artists.proofprofile.net/proofs/artist/f943d1c1-eed6-4762-88d7-03ae8c865359.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 0x911e2d99aecf9982f8587d431de33fe3e72d9b196f730e4d4e4d8541bdfc6e58. 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/FR2X41959034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95cf94e9c16944bb323fda60f93cf0840029c2d59e5a59053e8919bf52eeadc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR2X41959035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802b2fed7adde844c22a187205d57ffbb7834a84cb4586224d4f6e2221650fcc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:35:29Z), 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/FR2X41959036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911e2d99aecf9982f8587d431de33fe3e72d9b196f730e4d4e4d8541bdfc6e58. 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/FR2X41959034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95cf94e9c16944bb323fda60f93cf0840029c2d59e5a59053e8919bf52eeadc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:02:28Z), 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/FR2X41959035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802b2fed7adde844c22a187205d57ffbb7834a84cb4586224d4f6e2221650fcc. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR2X41959036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56d10e616a7520ec10ab6d22237e663e6c18460c7cc7fc6380baf6e6cc1724. 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/GRPA11900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d56d10e616a7520ec10ab6d22237e663e6c18460c7cc7fc6380baf6e6cc1724. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GRPA11900394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8970b96da3bd689e11038802e4b0baaa1f471c6c983f795f3c4d282ef52a9df. 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/GRPA12000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8970b96da3bd689e11038802e4b0baaa1f471c6c983f795f3c4d282ef52a9df. 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/GRPA12000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dc13a3226905552d97f50f6d819a1685664d08719fca10fe7eaf28ac743731. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GRPA12000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dc13a3226905552d97f50f6d819a1685664d08719fca10fe7eaf28ac743731. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:06:28Z), 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/GRPA12000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c6cbf0fd34cb1b132400c9001db732bd8be240d6579f4ddcdc8b824926cf82. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GRPA12000274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444412921aed67f6e0a93c77efd03dd24b05d5f2d5f8ed361316e848fee2929a. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GRPA12100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444412921aed67f6e0a93c77efd03dd24b05d5f2d5f8ed361316e848fee2929a. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/GRPA12100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833cda6021317539bc0954940125700b1826f8dc7a6faf49032456c8e66704b6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GRPA12100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833cda6021317539bc0954940125700b1826f8dc7a6faf49032456c8e66704b6. 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/GRPA12100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758a91402e46a2b74034a4222805648a4a11d3e7ae350f20b75f35c9e058ceb7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GRPA12100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3f54c37f18f5358073c9a318f563e4999371f424c46f8c14c99749308a1187. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GRPA12100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e41fbed1b206f0be56c36c782f88ccc0fcbde7367c8a91e583d729da7d50b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GRPA12100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe51e2f3cdc8e538722abc615cd94d722746e07200266b8382d7e955e5e7c2d1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:38:47Z), 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/GRPA12100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0512ca0700e704f747588be3294225a294a0bd683dce749a284daca1231d20. 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/GRPA12100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb04a93c84cb80c55b867d02acb6254a964a896a183aa250546fd8f081c60b8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GRPA12100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba792a37fc8cca1f32345a077c42b3903703fe848fdd1e106f9645cdbe96655. 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/GRPA12100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758a91402e46a2b74034a4222805648a4a11d3e7ae350f20b75f35c9e058ceb7. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GRPA12100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3f54c37f18f5358073c9a318f563e4999371f424c46f8c14c99749308a1187. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GRPA12100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e41fbed1b206f0be56c36c782f88ccc0fcbde7367c8a91e583d729da7d50b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GRPA12100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125b17a7ce114ed315f4c81ae2efb9f1870ccba799365f091810bb72a83b72fc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:51Z), 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/GRPA12100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3014bd3b754b178e559abaf542ccb91d3702088d3ce0c85b9ffe9b6af551b87. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:04:55Z), 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/GRPA12100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0512ca0700e704f747588be3294225a294a0bd683dce749a284daca1231d20. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-20T11:51:03Z), 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/GRPA12100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba792a37fc8cca1f32345a077c42b3903703fe848fdd1e106f9645cdbe96655. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GRPA12100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c2e66b7a94cfd7b7d62925a5a4ef88328d4ae54b443904f5d4e145389317d. 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/GRPA12100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69815750745162795383bc41d4e0edeac0e50510bc3d69ab1f24c7d5d8d24e49. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:24Z), 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/GRPA12200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69815750745162795383bc41d4e0edeac0e50510bc3d69ab1f24c7d5d8d24e49. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:46:52Z), 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/GRPA12200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c2e85c8d01b46dd8157a93f25ce85f61cab18739dbb974e29d7a4e20dcc439. 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/GRPA12200387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c2e85c8d01b46dd8157a93f25ce85f61cab18739dbb974e29d7a4e20dcc439. 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/GRPA12200387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba37e261e7af1f6dae22f50f1c8a7b70ac2c782844816e6a7e0ce2fb5aef6cbd. 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/GRSTY2202834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b28f342914d28a9a764ac54d646bb2e38a696fb58905514f2b8f538fe0c9e38. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:42Z), 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/GRPA12300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b28f342914d28a9a764ac54d646bb2e38a696fb58905514f2b8f538fe0c9e38. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:12Z), 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/GRPA12300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d10542ac5f01a46aca32bafc4a0e9298d6d64a68118834ce06f5ab0c36b285. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GRPA12300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d10542ac5f01a46aca32bafc4a0e9298d6d64a68118834ce06f5ab0c36b285. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GRPA12300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c94a9cf497fe2b90a3f6018c35c92768ff533741cc53e90adc65b6cd97edc7. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/GRPA12300510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c94a9cf497fe2b90a3f6018c35c92768ff533741cc53e90adc65b6cd97edc7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GRPA12300510.