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 0x258e7c6154c49a125ccf4abf5bcc844bbc666c773c2b886151bc4de2cd4e7611. 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/32bc95e2-bced-4301-8aab-9c56ad5a8421.json and https://artists.proofprofile.net/proofs/artist/32bc95e2-bced-4301-8aab-9c56ad5a8421.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 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 0x768ab50399d722110c692b10bc9ed3597adcb4bdb28eb7ba59615789d2f00f26. 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/QZYHM2374955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5587fa4417170248d81786485a50a0f12d36732a3f85b0c990e7888d51e21c13. 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/QZYHM2364326.
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 0x5d5bfcabfc81c8ab8c07cce72f5146d8f68a5f3e9bf2a96ae39edb4234dea59b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZWBE2358004.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcacecbe7ba5fc0928adc0e4f6e3adaf1852c76ce07cafd2abdad9431ea7dd1. 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/QZTPX2285568.
Kaigaku VS. Zenitsu: Corrupção e Vingança
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7275b304541da6554db9bff44495efa57449467514cc128523f64e1272b4002d. 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/QZYHM2419770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1954787904347b271d0dbfd836d64c6a5bf9be90d94fbe8fdbdc1d892cd6c7e. 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/QZYHM2417133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b643cbd08f5c8812d192e5d7d352de9a41d1093eaf9b396d430380c115aeef2. 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/QZYHM2414933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb823308ed3a24df7f776b19da1872cf73abd68a58b63e9f83e01f4fb30a86938. 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/QZYHM2411212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0ff83b690aa4fb600c56b03128d514e774dba61048693a343b55fe68009e89. 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/QZYHM2373529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240ebeccb23f7c9d6d507da19c3d2dc0b72416a4cf21dd5812d5ec8fd5ecbb6d. 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/QZYHM2370270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571048e2ce859b75d6ed86bdc6e7ccd1337a23453d8009419837b89f30fea506. 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/QZYHM2368302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ed47b219db76a37972dbc9644bcca7fbce14240fb85ec336c2ff7d9862e100. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZYHM2339249.
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 0xd747a5166a72c05c618be2c96e50da2d8bccc593efb3755cfa035432dc87d5bd. 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/QZWBE2352686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51fb54d9806d12c30ff083ffb8e565a2354b02d21706a338fb7936a6b40f39. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZWBE2310793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa613ffda6cb37a0dcaa30b339d8c3deb6bedb21fd4a8a65e9b8066571aacfae7. 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/HKK972325996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc455a05caf69580402beac02d4605cc17b583e8ed151545bb7e94dde851c75a7. 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/QZWBE2290981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edf28e59c4a76118d52207256c370a4d7d96d44267aa69e5e0d8f8f3911d969. 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/QZWBE2262098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42286fb954dcee24763173e436621906f65df5f74bcc285fc1777fdf9440cc17. 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/QZTAT2224255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3493c1eb1ae29564c72199709ad7445ba92561260826a5c6bf6f4005ab48da9e. 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/QZNWU2246762.
Bills VS. Rimuru VS. Gojo VS. Sung Jin Woo: O MAIS FORTE SOU EU 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7832b7e7d23fb8bea49fa9b6e416a48fab14b212a9c2a81f6ade6a37418d6. 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/QZHNC2240153.