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 0x1889e7b69fc047926c913a78a878caa44d64f022b93aea22e85327f2d927dc9d. 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/1a624c4b-31e1-4c86-9ef1-2e5d14f7a15a.json and https://artists.proofprofile.net/proofs/artist/1a624c4b-31e1-4c86-9ef1-2e5d14f7a15a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Бабочка-луна (DJ Denis Rublev & Natacha Baccardi mix)
Бабочка-луна (DJ Denis Rublev & Natacha Baccardi Mix)
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 0x039615437167fe22b8f6ba96c7f5d1b83b5fd9087f2999a7d300dad0eed21c60. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUB731590908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27581158e16dcb7592d861024617193fe6aeb973e9766c121d42ab61b80dfe3. 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/RUB731522975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7cb678f712e64adf680b96f00ac419907c815af418fcf0b516f00a28b94073. 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/RUB732013870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903a89321c79dd0ec6ba80e71c39554a5fe0ad1bb988b39a7d932544f18ea63. 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/RUB731597610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239859fcfb6bce85b40a418625b1549cc18a7c3a44866662068549cd4448c34c. 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/RUB732009392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039615437167fe22b8f6ba96c7f5d1b83b5fd9087f2999a7d300dad0eed21c60. 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/RUB731590908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843a8518eef891b96cba0d2d6bfb84d66463f939ec14a08d930b6f09f96ba0a5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/RUB731548658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdcaa47ad756f0b32e7b1d98cacaf2ed1f13e21f2d93d863e6258d5eb82d786. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/RUB732003000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e78f83363e33277f54b2417f7e0f773719e2238d5cc7577b53f4802ce179c. 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/RUB732002850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf11ac88577f5211fca58d413a80c604685224dc392379d0bbc716beb84e687. 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/RUB732013868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ef36933d6f4f0201b96fedf6186a1ce20b98d7b8881f0989369a361cbb20a2. 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/RUB731404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02068d729bc668bdf39992e6bc67a0287cf1cc8abcc8dc8a393b22eea56f0bc9. 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/RUB731570644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb1eb81265165fba1a791f7b80f3214f218cd8a739e8e8f69893f4c6a19b1bd. 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/RUB731564717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034cc97eb74cb65284d7027583928958fd791ff9ae3d8c2c506c4c134dde6d3. 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/RUB732040094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517918a0d8480c43c43c6dcb59d70034222c63c76a785d5001407c588614e7ed. 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/RUB732032841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7cb678f712e64adf680b96f00ac419907c815af418fcf0b516f00a28b94073. 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/RUB732013870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1068ac148fa69ea01d17d6ee26387293d799d96a809f60a5e9cd8fbd96dba9. 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/RUB732036694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039615437167fe22b8f6ba96c7f5d1b83b5fd9087f2999a7d300dad0eed21c60. 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/RUB731590908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f46c2acd9c157ba68a31c008e5c4dba6c314fa9f3fba2894820f65bd2d1d78. 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/RUB732014762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239859fcfb6bce85b40a418625b1549cc18a7c3a44866662068549cd4448c34c. 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/RUB732009392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321758ed6663032fcfbb8be9826d6a7662740f8c421d53f85b34d3fb04530dcc. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/RUB732053231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c6a2f987b42686fb494c924157a2593809e32568c79c53e0a4922449d56a5d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUB732061583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a011881ab2934bd8c205a20489256707117670e1e6a5227cf0bcb0851a8eb63. 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/DGA0S2453082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b0c4048a0193024a81cef9c483f2dc187e6a421d035593d506f855ff3a92c9. 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/RUB732084712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb346efd8e83eef82bc542565eb2f1bbead96d17c298d14eef849358991bfb7. 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/RUA1D2563298.