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 0x53e2aadfd141d5b9d89591d9efb894d2e2479719572c4fdab35fcf10edc24104. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b88f2054-a008-44ab-83b8-09c472e0b92b.json and https://artists.proofprofile.net/proofs/artist/b88f2054-a008-44ab-83b8-09c472e0b92b.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 0xd5069cbbe4bc1a3156fe0053c161e8ee795259d644761d8103d9f76be139b3f0. 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/TRA170800574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ede9136c6eb69d0eb90110848664aa883065dc4e0e45d81044c72ebb06b4bdc. 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/TRA170800575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce46c2af4720b1813d3045de2fcfe4a51ab2c779f98040093fb636d49710364. 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/TRA170800576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d42e047295a30ddb7306b629de17501a71905cd705f2994e444f09c93dd7dcc. 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/TRA170800578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40590a360f59ce2d36d67ce2497c7180b3117f12ba1e5c2debe8e4bf45211bdc. 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/TRA170800582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4115df9eb173c1f59d70eb2e2d0b47d2b79a8b00f13cb991753b276c7a1157e. 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/TRA170800583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c76fb249603ff8ccf9e817fa4e80417221b1a60e0f31b0720c3df525896a49. 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/TRA170800584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bb3ff14079d7936f19a19f3ef4d6e3ae5c94361dd2017a7dfecad47df4b8d4. 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/TRA170800585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573ed43d985aa4716ce84f29bf580ae6d09b2bf1f0a65890fb3e321d6e6ecacf. 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/TRA170800587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f861c526cc009bac109af063e825c6d92e0b6808545acf95ed4dfef5ce4ec3. 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/TRA170800589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41812242d879d2b875bfeb81b8009e4a38d8549895f1286960bc6df3d1334362. 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/TRA170800590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ef078897e0d081f6163d354ab0bc5685fddbcc6a99918182efd0ec7b971b1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBMA21404184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc71afb95604169f9b6e235ad3e80d60e6e085d6e0aad8b28b3d313a0f581fe3. 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/GBMA21404186.
09 Underground Hiphop Sirhot feat URA & Ceza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f83fb1aa783644bb033d5ef79100af921e6e0fdac69a8e5c0c3dca39c07390. 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/GBMA21404193.
13 Anahtar Violin Mix Sirhot feat Nefret
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5806ff5bf944ed6f99df4fcf07767b517d8d358e8990d23728e559750f696bf. 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/GBMA21404198.
14 Outro Sirhot feat Ceza Mel Kasirga Fuchs & Erci e
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb390755a1acb67b2524b6d09b7c83f4d60136d57b885739903569ed064d9c673. 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/GBMA21404200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9da4218a0e1663527da7b008f456fce4416d0c0aa5b2318ece00aac1f00d53. 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/TR0340800412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce8db24e11a8f1926f50fe3d6f1911b1fdf53df536285b2916cd810ca7c9966. 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/TR0340800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0779b182f17e43563e401b654cb1d1f351cf1b2d929885a3a68e7bf7db012f9. 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/ATFF11900210.