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 0x9be9761eb5851e12335c13d5c8494833aaf0ee5d664bae5b17ea4605458e863d. 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/51f1af00-3ffb-4422-9162-658c3b9d278d.json and https://artists.proofprofile.net/proofs/artist/51f1af00-3ffb-4422-9162-658c3b9d278d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rap do Midoriya (HERDEIRO DO ONE FOR ALL)
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 0x85f52d6e4fc997112943586ca4d7ebc0c34ff81e6aa5875ef1642b65b8b8a364. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:23:52Z), 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/QZNWX2187478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98de44f7f5f9524d01cfaee4b44e9b8c9cbe4de3a4cdf7530d33b343db05a33a. 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/QZHN92255752.
INSTINTO DE FERA (Kaido, Grimmjow, Pickle...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa52ee30cff19dadb118c4ca2e90d5740d13b3d788be21ec7e048a32e5b3920. 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/QZNWZ2306244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8d3eee4812c06501f0357018ec5d9f66e1564c8d3e24636262ea568b622bf7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAW2367027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1d1c4f809bab726a5ec0761251a8daeb589a62863961e622d023ceea7b0a9. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZES62403762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafd51bb443a07243969af9cc90cd53e1719e2cd7ceb7a346ba92883b80a3fe3. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:10:50Z), 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/QZMEM2450613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32927917b8321d86487a152da6214114c37623f70ec284747f47d090f2341db8. 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/QZK6N2551420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5979575fd7e090c0ce51ccc755959b5aeb78eb7cebf93f3447f3e2e9077ccd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZK6G2588443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390971b2c6e75caef0009b9a2a36540133801013e3d7f75992dc8036fd21d40b. 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/QZYHM2509969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b18ff15b2f982918af15d74ab71fa632b33923267a1b79609f05cbf6408663. 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/QZYHM2408251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd692388363b33db9b472e37d44a6cae13c9217bc7b7faafa6fba4696938412. 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/QZYHM2330515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc3915983b4e9c018870fedfc13ca448ff794982f3894b4b9a8dacd2370fc7b. 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/QZWBE2253034.
Tanjiro, Tokito, Mitsuri e Genya VS. Gyokko e Hantengu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7b40f640bda578d36c70152efefa81da7a88e17c3af976067cc4d6229a930a. 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/QZWBE2404920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f691179aa12f1039a3d9af2ec57d7d18f1820d16bf6afd567597e0d94afe9c. 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/QZHN82437260.
Sukuna vs. Feiticeiros: Ciclo Amaldiçoado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152c7e2ee91538f072746028a511503f89ec04530fae8282167c12f2fab03062. 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/QZYHM2426256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c801e871963d2424514b10e91f6c4b41dce7bd677f6297d960a2e016a0431. 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/QZDA62134153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb269ad261ab42b77350b08b6a83bd04b910618215feca6fb681d8ff1bee188be. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/QZWBE2339648.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18ba9c774f757496be199198fcf287215d9d4cb11b4d6972d617ed080318d1c. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZTAS2295142.