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 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 0x80cb0788741d7c1adee85b79ff24e6f670e37806cfe57d6932f0adacadcdcc4e. 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/4c63555f-6f4a-450f-ba0e-66d10caabde2.json and https://artists.proofprofile.net/proofs/artist/4c63555f-6f4a-450f-ba0e-66d10caabde2.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 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 0xb6c7d6419967756ccaffde590aba7877be7d92011ca7853da2c33b6b6db2a0ce. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FR10S1787625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce968620c87f07d1c8d717c64604c6b8a48d89c292f4382c04b2453a1788e343. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FR10S1787631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e6f1bab36d6dc233d43c543ab5a2ceed4ebe7184d700e6daf0f03e88ec2b59. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/FR59R1722801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e958386835ad82bf5fc28e601d91c4ff2a2b9ee361e020c2409285940c110a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S1896191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720bda310fda24ecb897268fd4db047235f39f7b42ef79216ce6d66fb7307121. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FR2X41895686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef82a9f8168972b36beb5744f8f25901ec0cc55f6a920234d8090109f806ceb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1819017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fb2a8b6f9c4775e3deda727d38fbcdb1345175aec1d5837cf4bf9756c41ac5. 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/FR59R1742374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2979c2d209404412e2cecf9ed7afad32e6443996d2eb0a881fc3037a8e6b44a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR96X1884744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d25ce8cd9d70920fb18b4f783d45d474a22a8a47450bb8c51d0741a07b856f. 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/FRX201835131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f419c4dccb625b5b4e787ad77b16a3ddabb0777e8810187a60bddb2261be83. 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/FR59R2265431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf0e0638a11fde874b1bc0f7ec52da1410bb41552af54b1c4c78a3948caba78. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FRX201849623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788629482cd10d4bb2837da4e4f9cf41fc7291e62e020595ac0c97589be42e07. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FR10S1954845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f570c1bfe84f1d433f3238fc68de41a129aa84e6c10c01975e5a31a8b50676. 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/FR2X41900595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1a6f571b0c8134cf660bd756154453e1eaac8cce773364cec5fb4fd7546ac9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR2X41906724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe450fa7457c43985a141809f70e231ec75f176d758c0e454399c90ddeacba22d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR2X41930813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51fb884ab932fd8ab6c417ce5f9b690690bf0aca1c79d337363ac0753e15516. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR59R2236958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c40802c12a447d9383581a8b74ff1ce61507fc7ea5b4c6c8454143d642d26. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR96X1976867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48591876a7da38d9d47e7b8fc354e39bfc6d58ed8bbfabebb3b437e4db83a44. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FRX201900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d7c9f14ef712206b38fce4f2fd8ca65699f750c803d7559f8a66d2b65ab1c0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX281969591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae0e8174b3afd537f081db5d76625d87a47edca56bc3dd3387955d15401b259. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZK6H2260659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65aa99c608c4be9d080fc27eb44554677c77728c20f85963981d82e90e0c22f4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FR2X42103938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e0cd8f44910b9a1f340108073532e5b8a73c1a680db84605124a1c223e5081. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FRX282147037.
Hit Songs Podcast Medley : Yeki Bashe / Gardanband / Roshan Kon / Gole Roz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217eee57763b7ca25cd4a5e0405dcce3608685667682101c323757f406ad438a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR96X2223270.
Ahoo (Kahzad Tehrani & Ali Arjmand Remix)
Ahoo - Kahzad Tehrani & Ali Arjmand Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4da0aea9869d099a417815d0b029ab65de51d0fff89fe465791a65c18f799. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FRX872330180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fea78b2bc963974f8ad9f3a2702feaee766d38f4dd4e9ac8f9cf5eec9b3c5ea. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/DGA0M2398443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0843acc8e8e5c3c0ff67018ba28cc09288c4fc2846e139be5cb5256ef5ae72cf. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DGA0P2477195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db8cb52601e8795315d89f3e6e75c35d017be775b62388e96dc0da69248908. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R2495798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b45264461f3cc77dc40ffb0348ae1d2a55ca1892507ad81e3a1fd4d4c2a9773. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA0H2421523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0efc075fa86c309740a1252c617aabb238ca0690189c12e189f9d30f4909047. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/DGA0R2485883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ee4f3a333fefeb28e6431c04168f5ff412c16900d75c8607df55aadc8f54cc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX202550456.