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 0xd0823d84b7402cbac06e82f7cf6c4e8ec50aa1a66856260b696b75e1ebf18d12. 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/38a6d598-38cb-4d3b-b9a5-6e4ad7a0cb64.json and https://artists.proofprofile.net/proofs/artist/38a6d598-38cb-4d3b-b9a5-6e4ad7a0cb64.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 0x58f01888a925231cb478e083b7a62e28e338cae38ea5a2924bf346fe7b96c76c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBPYM0730190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9755d831cb3d8fba40002a820ca2128f9d7d4b33c760f289557d70641ca54ce. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBPYM0730192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651544b6e77dfbb73ee3bfa76e7501e9ec02be3644407b455d37b68d70c2e7e. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/GBPYM0730193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3496ee8236ee7dbfda0993e2e0e2db84d8cb3b4a41a470a0a4cc6402bab060. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBPYM0730194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5e645aa07c20e9b9069855f13c4ffd26132a9a310d52e841fe8fe8362e0729. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:48:17Z), 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/GBPYM0730196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8930738966593671b42ad2d992a787279d374b347cb080ae376743d7e0abe48d. 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/GBPYM0730197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7101d56c92a11f6ed6c082bb4e61390750e09364fb61bcebd9c419d8fc077f3c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBPYM0730199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4281337ebeac26f5803ee97a007114ce78b366c8490d964badd5b4ac8603ba12. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:03:25Z), 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/GBPYM0730204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dab1cf33b81ec17e0bfae6d0b922e0218f835e7af38a96161301d4b26c453c. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:35:41Z), 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/GBPYM0730205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf392b43497cba266e3286f52cfeb1213a70d57486eb4fa0d7dadf4406fdd98f8. 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/GBPYM0730206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe482986d9ba676f10c4ec23916994d1bddf04d22559e3901ee7d896deace2964. 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/GBPYM0730142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8e7f11677778de8c948ceeb0942867052bcaaf576d6c2a47a2c4c0ae39d1ba. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBPYM0730143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69762100fd1b4127f77447fae464c6139f4b75866980d187874b1a629f38aba9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:46:39Z), 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/GBPYM0730146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c3f0ab47a9e02d84aacf8e182ac6cc755a2f111b1182944b9a420fb7779cec. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBBLY0800215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa70729ae6351fa990db4401df047df82c93fdc192870501373a73126ccc6c8. 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/US4E40578302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f39f0a7453f8e37c4b706f046985927f442c603c655cda712ccc69e691143f3. 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/GBPYM0730186.
The Truth The Whole Truth And Nothing But The Truth
The Truth, The Whole Truth And Nothing But The Truth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0690383719fae2e9a8d3e4896eca1ecbd0ccbf581998706eb8e26b621a486682. 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/USX5G9711501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fda1213249fd8058f129bd1366d925fe5a591b1f33a9fab64b12733a492ab49. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:48:29Z), 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/USX5G9711503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccec1bc83958f13fa7e1aaae025547a09ca60152d51c449d3aff39657bc3c7d0. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:08:51Z), 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/USX5G9711504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf410c73f873b12c8a79631a42211f1015586544372a55ccd96e3ce143febbf09. 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/USX5G9711507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeef999b25d78f70e14e4d2c754333536f11fab3d4d89f6293f73923dc5c1aae. 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/USX5G9711513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264dd9809d75490feb784e45aa569aa8589eab40f97684bdbcd456455272e432. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USX5G9711514.
The Truth, the Whole Truth and Nothing but the Truth
The Truth the Whole Truth Nothing but the Truth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa54d9e603abbfe0173b2e753d3c8b8c89f4d9e8dcb905f74f9516d2208ebfbf. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USX5G9611402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9a86120ee639ca6e90125ee01205631f797e5fe063b6792a0c5eb13c839805. 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/GBBLY0802061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824be25893fe1f4f25be0aab53de413f57da6779f28637c8a98554e6f2fd7fba. 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/GBBLY0802073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c9c4c1882f6a7f8bf9a41f467af7f1e9a85906cdc7d8f4b66da5084f6ae9b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:28:05Z), 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/GBBLY0802080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79743bd2c8bc4270099a0bc5214dbcc30bed0c265eff761332f6106319025a94. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:54:57Z), 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/TCAHK2369495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098979c7fe5c06abac521a5f0e757d8da9b91511095c88a8964595e17a3f919c. 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/TCAHK2369538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7946596d99e1ef0b35ebe5c1aabe9f06a2109301b5adebcccbe0829e5364e1c7. 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/TCAHK2369599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d71f8cbec3ecd34b56544598f8be1fe56334eb6301d82c56d8ed162abccba0c. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/TCAHK2369714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ab532e1c64567bd2f78956a68a223f8b8e720f1108db0dfffaa071a38978d6. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/TCAHU2443316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38fbc6e5e53c504ba72bb1d1514301265c4304fa02742d3f436befb11c8f14c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:05Z), 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/TCAHU2443427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fc52f16686ae86e3e320ec9b602794f6f010432124257ee85201b88fb36dd1. 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/TCAIA2432884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6316e9e27de029af42fd8db137c7172d0cb912ea7e4eeca6906a3e79303d0988. 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/GBPYM0730189.
Oi! The Singles: Classic Oi! Singles 1977-85
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4843b118895c2c4830d41fc68c0a7973627eaeabb6cc1a1941957d0abc515c. 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/GBPYM0730164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaad15f84a2d766dde939f5d99987968e1662da83f0c1dca19572ff48b5e0ca1. 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/GBPYM0730012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb76462b680ef894e60d1ed8961284235f36bb13a6160c0a0d8c8167a444d59. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USEP40811184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bdfa4bdc80e498f3d7a923431e708883f651fde596d25ad19710df1ff32120. 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/GBKYA0706842.