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 0x1065c3e3f62d2b78c9c2f5d2e295d78f38558e18e0ee5e809ec92b0fb8b8e1dc. 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/0d12eb51-1be5-4915-b775-745188979a88.json and https://artists.proofprofile.net/proofs/artist/0d12eb51-1be5-4915-b775-745188979a88.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 0xd3fa3bfdb25a23135fb9d0399ced7af4c8c4c7c1d10aa751b62de3ae6a135c6a. 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/SEYFX1101102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0a8e90c4f5af13add68927bd4a0c16ba8f6726fcd67913786695e23a64913a. 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/SEYFX1101105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3640d61d8448f211c586e4cadf4bc526bb53745784640108e5be11da538bde. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SEXCH0131203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700dae8c14dde1b17f4338326b151f4c137fdb58c0609a1572c8b98e5c38d277. 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/SEXCH0131204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f553ba41c6875749684fc964088381d38526264f47271c4b582c7b97516e9a. 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/SEXCH0131205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe749ba141fabcd75d84b37355baad426d9a7fc6ffb240bd69b507660b418ba8a. 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/SEXCH0131209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deea45d9fe03d7a742c28b4ae15b4133172dc25c763b90d49fb967540b7858d. 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/SEYFX1801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa56d65570adb4c99ac146ecf7242382b241ee66568a92bbfb2d33e21dbfa7ef. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/SEYFX1801002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe80b1d77d6917492d0fb00a7f59382f33f3eb212815fd55d4f2fd7f4502bdb7. 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/SEYFX1801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6af57fc8690aaca7657ed0006c2888f38a7b3fc48e7dbe7f2f069c103ce9d6. 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/SEYFX1602501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51563492fbcfe2ae1e557c15f10abb0f0ed570999083808e20d4f2d3ba6f937d. 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/SE46Q2400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036729c7a661658a69ce1319b24e85995bb32452eddaeb5f212f34fa6f8d2cc3. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:00:36Z), 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/SE46Q2400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056f1a8b834c91c3a3037a52b25fc9a4ba32f72f541006d3e59d2f28d66ada6c. 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/SE46Q2400409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a58cd3582ea100bfaa70fbdb720ae8560102ddcc0db517fd3f65e48bea4d86. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/SE46Q2400410.
PROCD100 - A Progress Productions Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a71768f947ac24e6d68e44953dd3be3040257ef87ae2d7773ecd5ab75f8b1c. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/SEYFX2000726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9d5d6cceb443b014e2303caffe69630bcbbcb901742e5ced9bd7b743e357d9. 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/SE2ET1100402.