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 0x373d7d80feafdc1ba68411134a3126eb7137632d55082a2f4c14257aebce20fe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf904d1c-e6eb-4848-93fe-5adfab8d3962.json and https://artists.proofprofile.net/proofs/artist/bf904d1c-e6eb-4848-93fe-5adfab8d3962.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songs From The Hit YouTube Kids Show: Season One
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 0x08afa20cf34cf6b1b4d83ba7d2b90628e9fa8aee9fd993c32349f5fd20202baf. 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/USUG12303397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60da373375defd3125d8a2a56d2768aa4c90c22296d30911ce495241c7d52c60. 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/USUG12303406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dfa67c1574a40691a7fab3d2ca71e5eb5eb7f5395849d8772dacb87de8cd78. 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/USUG12303400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adceff37fe6307290553aaa8667cf49cacb8fec71f87a3552d48ecedcf223e5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:01:39Z), 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/USUG12303396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c5ff59d4515f898c78fdea2f5b4ec5e594d9b914c209c4822e275cfad726e2. 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/USUG12303401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793bef77bbfb7e45388cb4b5aaef0c9b8b2acf65b4a3f143d4421140fe5f62f4. 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/USUG12306286.
Songs From The Hit Show - Season One: Extra Seasoning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30d7aa991a967deca0e061cc2f86c47f5f8178579805820572ae97cd3530400. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USUG12303403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd7e2978d8b2bf369f2b90d13217211a4a3c31048506b3bb87c809da44bbcf. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:34:28Z), 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/USUG12303398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42acb5ead1b910f79d5e200f274a72125da75de469cc79af6ba88efe8f091027. 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/USUG12307412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab14c35f67d5ee74a4c09028ccfd431f242084b31c7b980c2cc3b9f100bc5e9d. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/USUG12307439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb99b646927ba8acd707f00d007f1ad453bf327cbaaf09751236557389a1a25. 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/USUG12307440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb204cc5dfe4d51eda9cdeced9ac798f38a0f7f4ee3f9954a9fd4369445892175. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:19:00Z), 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/USUG12309061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bbb3885191e9f96333616481b855a3a70f0c348bbd65ba19e5a63ea041b244. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USUG12309062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab14c35f67d5ee74a4c09028ccfd431f242084b31c7b980c2cc3b9f100bc5e9d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:55Z), 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/USUG12307439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544e3bc1ff763c9ecd579d8d29df288233b85b0535abc13dc6e0ab3f216e0be9. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:13:17Z), 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/USUG12405456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250a1aacf80ac481049b85f5771768a3bb3d150e1041b7fca5e0c0b2ce37e84e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:07Z), 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/USUG12407507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980392895e2196afff032f49c5951269862c993ebfbcd8c999f3163d0239ac92. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USUG12502777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd80706566ba0692b142a69e166eab8162c14b9ea87834491e22f186580df6a. 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/USUG12307195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8015581fed948b4d230899e94aa110f7517a741b145e88583a3f7465d6ee65. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:13:11Z), 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/USUG12306289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dfa67c1574a40691a7fab3d2ca71e5eb5eb7f5395849d8772dacb87de8cd78. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUG12303400.