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 0x7193056a33bd4cd8157fa23430247e664416706169bd3caa31a6a8e27675d9c8. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8aadefd7-4081-4aa9-b741-fa520065a680.json and https://artists.proofprofile.net/proofs/artist/8aadefd7-4081-4aa9-b741-fa520065a680.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 0x822e97e7ac63cbd07d44bd15e03740260c913e50c98e6c5ee222059329a1624b. 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/BXIV82455719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f49f6706f2c373f29a641de7f432fcdf25aadca3fd6b3872ae88f26d66ebd9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/AUMEV2586429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4408c32e09788705da8bac478365c8ac020f39b2efb75239424392d8b3ada3. 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/AUMEV2586430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2aa698aad883e1cc303ced1c047b2611425c9b1626655a4f51ae6df33e4685. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUMEV2586432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a839317213f4856511ab597bda40ac3378406d1b43733eaed3e174e71f1d88a. 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/AUMEV2586435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8d948b24bd183f3ef261f89e8da067fa732c6d0875fc57687094cee0c5a866. 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/AUMEV2586436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e5de753a0ff80d4cb3ab867d625f691e1b46679f11b05e431417641db36620. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUMEV2586437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722fb30da757dc6074bc029268304aa2694a907d7612c5581fd7a2f10c635c5b. 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/AUMEV2586438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd425b5efc88247e15156a6c00209d1e7bd865534213dfdf812cad07ae405113. 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/AUMEV2586441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ddd4ba615bb32aba889e2108307d0907e14bfab2c0ea01e247eb7192befae1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUMEV2586443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b1d2666101af9fcd20e1cfc4a6e13bc706f441a26caa6b9220e1bbd92c524b. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/AUMEV2586445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9cc3e744208cfb48fe69b119b5cd9d5d9352d6cf82507e06e6cfa4bdb922b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUMEV2586448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8d3ab4448d2f1e7dcafafb8cdd20d3700a50df8fea3ef060f5ccbf22199f06. 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/AUMEV2586450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08a5ccfb62f39f2b6d2b336278f0c7a69ff56b263c3546add50566bd22202d9. 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/AUGBT2549410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592468ea0b7da2df38f25b9db7ac7f6ff1126d6c8cc7e87fbb17954e45774db8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXIV82462090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79db3c1bbb14dc668d29aaae73ef2a6a4b9d97e5f248a0d247c3d1bcb20da260. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXIV82423622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950ad452aa214cd606907d04f4fb7cf2fc4297f6a5c9cd8a804de9d239b63c97. 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/BXIV82456471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c331bd0531eedc9cebb4caed6d9d45f8a8d5c88c94f554d045571be6ab8f558. 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/AUMEV2479058.