1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6bb5b8ebc0cf5c2f7f09551e0e27dcb1bf594a4878280319eaba1c06793c4fb8. 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/875edd55-4b79-43ee-b042-08e8978f945d.json and https://artists.proofprofile.net/proofs/artist/875edd55-4b79-43ee-b042-08e8978f945d.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 → block OTSBitcoinBlock must exist at that height 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 0x09b6679f288dd01346436638e1d154685aae1a1679f9ac765008a6a51c0da618. 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/ARA901500566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5566ef061d5535722a971b77a4cac62c4be104dd9bb2455a769e59829c9e45. 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/ARA901500573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdf5ffdc45d6413bcada15d486f9188558491d8ee1fc0183a5be3a493139115. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARA901500576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119046336285fb40a2aefe5228f74b00c9c0865102b25848a7c9558f8ed27c77. 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/ARA901500547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811ce67b3e4fe9f4c7e9dcf3a46c74722678e39390474d8db9b84d73c8e6fd87. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/ARA901500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a129c6697b7561b795336f33cf71bd76860849afe81fe7216bbaace1f0092d7. 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/ARA901500556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3560074887c727fd66cf681c180e7704b759d537045145d2a9c4732d439221. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES71G1513994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b7a2bb678e5d730f13dcbd5add7574ae2ce24afa10fd92aa0b5acec5d34565. 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/FRX452111266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a73fa41e51723064ab84d5b261dbebd3d124b14fe393790cee5e6d18c1933. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:38:49Z), 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/ARA901500525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40131fa82fbb345983bfdd26bf1d9781836ed9699ca152046aba43f5f4c6ffe. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/ARA901500527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf590d3c5e2fd7db8612b5998e7adb2004b26242dda69538b858999b4c0b0866f. 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/ARA901500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e385a58bb138a245b5841d901a63055e292100283e6a6065e53d44a7552946. 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/ARA901500533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc70bd405f5721d2e033e5fb61c1a53e89a01bf8a8ee29a8a3df645c0dfc387f. 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/ARA901800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a843cc351787479053e989ca0a4e859db98a4a122f259c0119e5cbd40ec83. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARHXW1902309.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c266bf02c149c480e4f2923a897d0ebedb4e70630a1116f52fba751af562df. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/ARW3Y2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6363359996026ab8fb4f96c75a115d2303f2e17437bc31ee21fed69975b0356. 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/ARW3Y2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe495a4beafdb12a99ef29e0c141657058d5cf7105f6d3f4b2db2653e8372b960. 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/ARW3Y2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6502473968de4d2841072ad2fabaf75c2330a492f6487edf8519e30fcf76ca93. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARW3Y2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3f83f7e5ebd900277d95c55669a7e2e60ba4b03037fdacc16e9f5e13a3fdea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARB6N1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f83d4e6d4e4aabde720aa6389de052dea6bcfedfa07d46407442c554b4df83. 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/ARX181200036.