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 0x0e9343aaa58aae8103b2c7a606ffdcea06a60b05c51a3f20f9086741020cb8f3. 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/20fcb0b7-3993-43bd-8f27-f579f040635c.json and https://artists.proofprofile.net/proofs/artist/20fcb0b7-3993-43bd-8f27-f579f040635c.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 0x9f75e2bc35695ee7542d3062fa320f129f3b95aa4e156a3d593aa7eee0afaa8a. 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/USHM92457041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a4bb838ef846af817492b29974eeb16095cc465856709b0ab8679b565b99c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM92441294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe396bbfb7c3a99da27fbdc781ca9fdf568707f67f35a87ec6a5b42e4ccabfd91. 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/USHM92441295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6330f65a04c9d7700dce66fa28969c2ecab1c0585e6bedf255ee13187e4dbbba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM92441298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d9ee4d77878d9fb62a93cae9064b67bcf1b28d640c33d3f62384cac3400022. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM92441300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f68c9faf466afe65c85943581715e66c48abb18313c89f45704aeef093e4ec7. 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/USHM92441301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0340d8f5fc15fc5e03ef593070ae21ffc0c3f09f70a8577a4d8959be60b00000. 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/USHM92441303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9be5354297cf00b8a5e829faa49beee4a853ebef92e423b9172d5c4771e5260. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USHM22403319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485631f0fb80171620ac70309d84530aea7c1e090e3b7b5789148fd8cf6f04ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM22403320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51d551bb8e3353472223d656faa4f3bd5618ebcbf1358fd624673da17087600. 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/USHM22403325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3264dadd84434bd7b2ae1abfdbc79b87faa636430c9375ebc637080db3eb7b9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USMH92369996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabffddc64c8805f0f618173289b60169dca13393aa8b301b64d976bb25522711. 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/USMH92369998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9dc526a06e59b1f90c5469fa95fe9018d54e4479072aab6655cba5ce7be92e. 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/USMH92369999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d6b694262a528862e198bbca89c5824ccae456795f10614b2ea74393157884. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USMH92370000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac908f4aa297e1f364a96e2fac6d165bd882994b8004d270908fbd99d51806ac. 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/USMH92370001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f49e72bea58ac0341d399a1d396a9dfa5f9762cd2e8892a69dc96bb8a01dc50. 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/USL4Q2260167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3081068244379d5e7a6bdc66a923aee3a66bf559146f39fceb31cca6ec51ae4f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USL4Q2260168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bc197bc63c525bef6296a6f7ccb2c85094e7af4a3b39c0a503663c19f2e920. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USL4Q2260169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792ab82a877eb7cb56882fe031fb3e5b6715d024f229747a96bc9c88b1af28f2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USL4Q2260170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532ffb3e3974afec888917e56a04dafbd0cbbcdde7a665b5bb21abd8cecb45f. 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/USL4Q2260172.
Lagna Geet (Contemporary Gujarati Wedding Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466d417ccabb157b69db5cd03abb679ada50643a93405323b9102cf5029efbf1. 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/USHM22344463.
Mangal Phera 1 (Pahelu Pahelu Mangaliyu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9c9934897c8c382b6a9bf5d78f3d06cd795d595452955fd75f9a817d92a219. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USHM22344464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2545aafaa5448fbe673d5d39bf2f590d4c3a1a4436c00dc690b2c3ef88e36d9. 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/USHM22344465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda914ca5c35d547f1402ce08c03d06ac7c9260af84b7275e59f2a823dde7a7bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22344466.
Mangal Phera 4 (Chothu Chothu Mangaliyu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83c43bcb1c4fc526f601511d8755701e1e80cffc8c8528b023697a8980cd3e3. 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/USHM22344467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa952f98888b48593dbda828934b11039709da808e8599f126d6381205c0ba1c. 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/USHM22344471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db23979bff4c3eda6424345be22efe44896276da0650545ed91ede5314d91f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM22139901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4d57440ea759c270d366d118b5b6e981ffe3313b33a0a0de966e8ff9c6f0b1. 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/USHM22153952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73eeb8771879d0117c164c5b7724dbab3d4cfea6e77228e4d064555a3167d229. 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/USHM82109809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b62ec5bda4222cc7169afb74ef9b367b83815ea8667b61df1c104b0189c0e33. 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/USHM82116211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82716d73e9f61f59991336f7f9e8cc7f073ca99c295425c19af4d1b8342e54c. 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/USHM22172057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183a57ece914fee51bc088e8b8adbfeecb6fb15f19e6320da33a7edf0c4e145c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM81092839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2ad74dc1370ab344fe4156f6c82dcd3c57f098460ae2e85333742962e4d46a. 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/USHM81092840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89735633f8c26097d3d50e69725285d0f28c0a9adc4050b1c16894fae3cd4b4. 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/USL4Q2430246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c1b14d26ccd22cc6938875683985e0d38b7acb6e173b12b1e1cc7ebe36bbe4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM92429282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b78b603fd0828ab677faac5b098f2e2e997002c8810dfc4b1a8a034e1de1c4b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USCGJ2436953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82716d73e9f61f59991336f7f9e8cc7f073ca99c295425c19af4d1b8342e54c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22172057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b62ec5bda4222cc7169afb74ef9b367b83815ea8667b61df1c104b0189c0e33. 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/USHM82116211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73eeb8771879d0117c164c5b7724dbab3d4cfea6e77228e4d064555a3167d229. 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/USHM82109809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db23979bff4c3eda6424345be22efe44896276da0650545ed91ede5314d91f1. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USHM22139901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33843a45a8bb27f8e29a2d73e6761876826e21130d81175b4f612e97a6495b20. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USL4Q2012563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7332637c62c66f00c2ec82b479ae29af1c04fe7e40ac07d4f35bc1e49edc02. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHM82002438.