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 0x968e1f3855e534b8b91b38a47b4ccf2e25b1be15a78b9704a32b6c752ac4797c. 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/77b5b484-4c4c-4576-b52a-e08ee244cdb0.json and https://artists.proofprofile.net/proofs/artist/77b5b484-4c4c-4576-b52a-e08ee244cdb0.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 0x4411ec5c8b25e18db5a51c1e091bff21274274c9e758e64252fe85b4003008e6. 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/GBARL1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdba24169e1169e0289f62f4a7dc48867a72b8199d16b9b5037216de3c22b61. 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/GBARL1801241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5732490a32b77ee3a9932fe9586553e332a62608f1943760e38914895e9bc62b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBARL1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9c3ab2db79579f13baaf6cb967406312526eea9dc20e4de1af621b0562d938. 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/GBARL1801242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a07c653d5d1c4fa4b4cd045bcdf701dfc93f1e58232e4ea5b9db88591029683. 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/GBARL1801247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498611f28a60ad4d164483e655f9e338ea5790f2c62cf525474610b1ea7702ab. 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/FRZ132408010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2624377cb4611eb8f9ee44c41622ff281254c010c3647bceb244d390be9d878a. 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/DGA052308356.
Dark Honey (4TheStorm) (feat. Makaya McCraven)
The World Is Yours - Ashley Henry Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62211418e70f3865fff26d985fb9b97f99535bc46d2a72a5a78e72fab0ee2524. 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/GBAHJ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1c7776b918bde7562f38db3da643cc4e4c349becaeead99179fe9b967ba69f. 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/UKHAU2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed150182d9ec2e9fb454d67fc8ab5a1e5ec1b5838a44a8507e666f527cf0cf. 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/FR96X1986831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085f1db3bfde8bc5989adbd8e364b99493dd34e3cdb66af6933a4c4dfca37760. 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/UKHAU2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6356cdd31c931b3ae9a024c7cc1daa2458a937fb093ff59935ca4c17efc2af8. 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/UKHAU2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0db05d55d8db8977b813b004cd0b165e0bb5a3902423a01234a6c9519c6b3a. 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/UKHAU2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8794edb403218ed06d61426ba479a3b24340a1dc871d7010749f15c06c6ebd. 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/UKHAU2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d37fa413d49a7ae626b54543f5188af878629c9fd17d40ae36531e268ce493a. 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/UKHAU1900308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60884d8014e634a76f1bc402fb0fbaadaad4ae44e6c8d42ab31fe4de42088f76. 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/UKHAU2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc6e5b9325535fa7dde903f496ebc94c732b8bdf16422a047dbd523e4651427. 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/UKHAU2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd82a64ff9575b2d05496e2aacf87cf8e39eed7ba9b4fdc5e8e1f972359912a. 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/UKHAU2000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b53ea688d34eb35f356d9d113cb1bd156e187708db7fbeb2d532463014d17a. 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/UKHAU2000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c395360e6961ccb5e569a887d698878724cb7838aedcc678c1ca8a8e89b0cd9. 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/UKHAU2000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cfd37549dca63a2da2c579694807a677ec758c3951836805b0db7854da13bd. 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/UKHAU2000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095f8eebf77f96806d03a42210551c997bd78e57f74604c0075e7d7667cf4d82. 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/UKHAU2000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97893db1e9ed0bde4dbda13569891ba846a6930170e71141470fcda5ea0e09dc. 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/UKHAU2000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61efc5f8236b21662b01ee4038189d3e6dd9d0b8130ec040445daf0ad11b1a4e. 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/GB45A1700800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a51a78dc0818206459635141c7db5ab2915e635ad5d3c1ad37d0d670abf5f43. 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/GB45A1700805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497f8435c1adec6eae65ec3ee3627c0cc54772efb26754c870dca74ea2c86299. 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/GB45A1700806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e7cc18768e89bb78c014ddd36e0add260f9c210dc682b9ca60a297028973c8. 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/QM84B1822004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceb4e7c4ccdc6d962da2c5c206a9001b89bd63f552e234dc70d23a1e4bbecd3. 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/QM84B1822006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5e840d159a07bd42ae8258a9443eca225b400c5d0b758816f37314801016b0. 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/QM84B1822009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe838e937d4db63c93cdfc092d132fc7b7594911c33f4818b432abf99ce17f5d1. 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/QZFYY2294748.
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