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 0x9d92693adb3d48d684e0f0f2827f6feba2cce8ecedf40939ad4f8ab7d265d0f6. 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/0eebbba6-6108-42d6-9b11-4de32830d457.json and https://artists.proofprofile.net/proofs/artist/0eebbba6-6108-42d6-9b11-4de32830d457.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mandelão dos Bigode, Você Ta Com os Cria do Cinga
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 0xd3422c20ae1615c56e352c8a856f273aebd57a5d1233e7b5f7ce863bb13627ac. 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/QZ5AB2484424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8537cb73844e07e7c368f8d20d016ffaa2b5565e27fb3b5cc8a535d0a6c3c3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2495210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e730e328fc6dcca8aecbfc9af9d6febba3c4b25fdc425f10bd8e4ffdb0ff5c1. 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/QZW9L2346947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08441dc1e7bbf9e1884831ccdf34b48b37577d614e7258ad7d93eb70290d9269. 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/BKSNK2400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7f92fa892db8b34c3e86d6869fd1f295e8052c7e130db0baacd2bace8171b1. 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/UKZGC2502528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601b1c345976dc587566e17984e58a5e6c58aef19757a0067c99bcd4d624d9fe. 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/QZGLM2599365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bac2c8a6acb740b8b0a4e828341343f9024802ec7161032218d45f04e39fb15. 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/SGW502224150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cb7f90f08778aa0964fb3d9d97129e7305d4d93bb0b383493ce9174131658f. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/UKZGC2410176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad0473156812bea3d99f956d261bb201be6fff765799afd159c787312733c25. 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/UKZGC2409695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0699b25689efd75ef77ce53491f2146ead72b6c2182f6725409be0bed22ccf4. 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/BXAXX2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b8db2711c858c32f4f0314422519be112b726750e535eb9085eca2327c292a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKZGC2404495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2531d7b6c8348010f1e33c83d04e886d8cd5b6cf2498864ed0e23eecc32c79c3. 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/QZGLM2424204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf63f5e62b8a814834a9578e018e8413aacd6eb210aa6936d0fc272b8b5b0c2. 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/QZ5AB2469830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05367f3e62177718852d27d271abbecfed454c7c5bfea2082e67b1aef0172c58. 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/UKZGC2307655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06b1b88653a09ee2608509b0ac979507f5ca912fee54cc49a1be04bf86936e4. 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/QZNJZ2376422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce34ef0e83fc8ee43fdd339860231f4b380751d361a64ab6633bbab41bf2ce7. 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/QZNJY2316760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec708ee2debeeaae71a970ac2ce1a301af57ee8f4deb0fa77e4f5c416cdead4. 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/SGW502324047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eb15f76c8d8c02e87a990910c0a63cbc3a414f750e4773de5b08831b11333f. 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/QZNJY2308909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51286a076f411a77b5aa376a9e197a371f2cad0ac421dcf2f4f998a53ee5d09d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJX2309037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c9a1de67ba76536b8bc718c025571a123d033d6c9788df0c56ab706c0cb026. 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/SGW502305910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee405027013cfbfd14aefe819ebac646878c55862d9988c001265ed3bd5207c7. 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/QZMHP2048241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629430a73e4edf7304061ab0d6bd2faa6d983f24354cf101a6f0fdc7f82b440f. 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/BCIH82203386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c4726a07292f53c253f2c442826afda54fa715b98d08869a3280b5a8bc2018. 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/QZW9L2308253.