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 0xdad83683c651d2c2d91f4c29fa1b5f37c502a68b466c1d89d020233a98dee9c0. 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/48b1ca6d-8f67-4283-8a08-9e8c87b0d191.json and https://artists.proofprofile.net/proofs/artist/48b1ca6d-8f67-4283-8a08-9e8c87b0d191.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 0x21b820346334de2bd952b8e0b4cfb5540ec202053fc7e75ab1a9ea9e2482317c. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/SE5BU1897831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5be2ec4eb553de879441086159d472fd0e4f492c6c9a6b77c6d9c4e5805f9e0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES51875623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5be2ec4eb553de879441086159d472fd0e4f492c6c9a6b77c6d9c4e5805f9e0. 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/QZES51875623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442e58cdb21f486d514c4aab28285ff2ef4744ad381d213020bd5b9391e74011. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/NLT2H1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfc31cae9615fdcd0b2472814500ff9173e35b0d4abdc537e2a4c9988d5e472. 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/DEUE12068564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d997f09cea03e5491b69a6cefdb3ec41228d61805814c6056f7acbb48ce55d. 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/QZFYX2067483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b21af4e032b9f3c2b4b26609fef3e6be64fc331c3676bccb5c969c597d1eb4. 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/QZFZ62012324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b21af4e032b9f3c2b4b26609fef3e6be64fc331c3676bccb5c969c597d1eb4. 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/QZFZ62012324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac22e30bdf98e0c8617cf6ce3f6e5dfb9be789122fad1e1610865e3057fc406. 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/ITL012100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac22e30bdf98e0c8617cf6ce3f6e5dfb9be789122fad1e1610865e3057fc406. 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/ITL012100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861d5a97feff566dc21ed8b86c7bd42b5d104a57a7aa49e132f0f2e7abba1c8a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITL012100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cd61a8695d295e53936efd9647376a7e64609d5ab4288f047d2f0a70f4c8e9. 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/ITL012100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c4f823a7599b9159a14b75bbf1097627079c6401c5445dabe14c488b42760b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITL012100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ea8272f8fb5daecd9824772bcc4ba7c3044bc7ea32ab90923e1949f1273590. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ITL012100013.
Fall-out - Karl8 & Andrea Monta Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc74ff77bbad2ad11792c9fc550b7d595c4301ee2654136a5d44418d9c52251. 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/ITL012100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83617cc574a6da1dda3782fb86b5a09f462ac6efbd71e6c32f61f441abcf1ead. 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/ITL012100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6f5273d8c8d74a411fc931ad83872ede48654c57ae40674ef1fa60e1376ab9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITL012100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91ce917ee70f7bfe6ccee88cbf55aa7b5fb5f4dd9c1e52fae7f2fb24c22c885. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/SE6SA2153297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0995fc6c6a0f23cf86a782a24961502b9d3b30c0d18d3e6dd17f78f883416a8a. 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/SE6XY2171834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac936ad1a34edb042959fd313db117ad376001ef73539b11fd5b3806d369cf2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5BU2266246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f9911c0484e89fef16b2f6c6cb749988cd3fa92edc41b11f9c25bf68faf76a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/SE6XX2268537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2f3f95d7092c4ebf6112544f82018ea3aa9786c6b282991adce1139c3bcaa1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE62M2286055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d31e9af2802aca59a06d023925a100e775ca328d24c89d2f5ba832461baf530. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE6I32305197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32931b8e3e381567d3ac96969c52bbf28962929181f6b37c8a1b41ad90193e86. 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/SE5BU2401608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f51716d70e968e3188569b41c5c5c62a827ec4bee98de9fde5c83b661357cd1. 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/SE6QE2014366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae3ca9adaa2e6472c5b84db8b3c90e3b6c3abbd623f2ea83b4a6e0afc9d3bec. 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/NLT2H1900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230b1ec428e8b9397466ae6311370449281a960e2207ad0c876e69e9e16ed976. 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/USA2P2205711.
Comfortable (feat. Natalie Major) - Revelries Remix
Comfortable (feat. Natalie Major) [Remixes, Vol. 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0b486dd501a127531b16f8605cd60a1593326a37488f0257f39cf84c91fef3. 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/GBSMU5014174.