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 0x3c15f86d364038a27b739ff0099a35191c0d3fde099d0eddaec34e87fdde922e. 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/b862ff91-03a2-4c12-bc2c-630f8e6de51e.json and https://artists.proofprofile.net/proofs/artist/b862ff91-03a2-4c12-bc2c-630f8e6de51e.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 0xc09b34c6745e5fbef95dbcc1216aa55a8f4b143a35c6787233668c4cb8f03b80. 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/PLB171302684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c04f67fbca1bf436e5056bcabbfaf956bf5acd8ff3571bcf54030db7a742a1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/PLB171200394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b4ee639bcae99b41ed51949fd73438ca47eacff9beb6b71eb36808e4fafebb. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/PLB171200395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22b43399f82c6d2af7c41af6785644ea963878f09bb16edabbf797763a496c3. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/PLB171200399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b29d11eeb95baaa79a8e4c3101c421dcb0bfeb003e1930bcee6ed5c6d464eb7. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/PLB170601171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e2338d5caed850ec535d2ed22cc28a711d9ec580ec230ded9fd4caaaa929b4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PLB170601172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be35aef35a6c66b371c038a483fe0f3d561f6d86a6e6251f49be106fb03662e. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/PLB171200403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc043d3fc392689bd6acc39d5831579713750487de0f5ba931e3e4390371365. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/PLB171400673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6cc6dd3b615110e66a4224e32305a03173fac45bd55ef3ad0a410602d55f2. 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/PLB171200393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c04f67fbca1bf436e5056bcabbfaf956bf5acd8ff3571bcf54030db7a742a1. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/PLB171200394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b4ee639bcae99b41ed51949fd73438ca47eacff9beb6b71eb36808e4fafebb. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLB171200395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81e447db87c80a3249fd639ace9ecf14fd692993dfa70cfaffdef36887ef81b. 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/PLB171200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7208efa4ad23adea4263a5bd39f6ba5c1e0c77abeec232be1b887329582a93cc. 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/PLB171200397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f20298a299e25a615bb5d1aa7f2bab453325048d03ccd90d8a1eefb093dddb6. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/PLB171200398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22b43399f82c6d2af7c41af6785644ea963878f09bb16edabbf797763a496c3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLB171200399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32726c98d59e738c1f3ac2bd2d4f785e22f74e0eb17306a52de2bcf13e2f8c0a. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PLB171200402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d66de5c6f2b0f27cf3143ea9b02bd827fe3e24d04ba9b55061b2c4b476b8ed. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/PLB171200404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be8801ae525bc6b46072188b53436b3f9b4586b0f0928c2f8d980824e73c30. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/PLB171303047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fd6ba3d2a466f4bf4ec5e8aa50ee294f4817721815864e1d9dfae918ef69e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PLB171303055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec93a3c7ee621bbd124cdec43aa2275769f8776c56a918ed56daa86bec099d4. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/PLB171303056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadefb80f4f1a99c54cd5ea0cab42bebf7aecab7624811c3f1ec7152012fb62af. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/PLB171303059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffbf5d04564498ec89b7e0195b1ea506eea0f91c2fbef265571773fafffa156. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/PLB171303060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3348e340cb35c8e6ccadc7693d05ae45b94f126d9a0a60479f56cb16560686. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/PLA390917801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15bcfe9b434841a44c2eb5ae3393dc55f82ee886722c47f9f391012bc8b50a7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PLA390917805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f7572f8eca2638e6cba224f505067cbde03d6cc09d3e05818cbc18057226bc. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/PLA390917806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d8c9628ea402fbbcf0a16a6199b08429c5990d77b6019a83bb027fcc72e0c2. 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/PLA390917807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616a92fb8e15d5ebe7bc2957f18c6d0c0f6fbeaba07d8f115f49011e75cd5555. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/PLA390917809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e138e2ee7a19ee7ce222207cf378a9a8a1535ec9e815558eb684349ec79364. 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/PLA390917811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3033759aba97f2530b127bf57d7a6200fd68d357ae75d06251914f61f81365bd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PL30M2200004.
Felicjan Andrzejczak & Glam quartet (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be652cff006b9b72db794300e845de50906f384464f3c139864747885253077. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/PL30M2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186c54ed717e758c7aa3f43d4b2ae315d28addab4fb7819a696d8fdc67010a6c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/PL30M2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ab9e13886da998c129485cf82f656f5e9dfe9c9436938668f5b1fbbf2534ed. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/PL30M2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d1f520c8a82ffcf5b5b1613676bcbe391170dccddf0a872dc1407adedfcd04. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/PL30M2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757d6417df73be6e330e788a6b7c139b6259a00cba7d618cf7aef4b8509557bb. 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/PL41D1900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471e536c79b74d8b3e3ab49bdf9d0f932a86560f62494b9f34c5f391ed6f5944. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLA391715408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1790efe443bf4670eae88b92a2a09d966a810d44a429fbaade71ec945270a347. 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/PLA391605215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1e28851ed4a7d87f2aceeae80eb273603f7c0612caf49aa970289c9e463b0d. 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/PLD111500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fb60cd8b208ae56bd63b4a74452fbb9000f02e51180e18574babf3b42d8cc9. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/PLI369293740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d6501ef1d295cc2d86083483f35798766a36a1d9c4103b1493a56869e5802e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PLI369293770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a90791ff4759a2ee4410b7a200ce56b9b235673e8cc2c2cb9fc2f706d69ca28. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/PLI369293670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc96f28bb47767625251f8dc462d46c4dbdf21619f5209288d9b1919bd45e9. 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/PLB171303004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e6e6cd72d7971cc482724e6ad89807deb1909ce69443c6499633142439dda1. 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/PLUM72000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386b6b2fd087592f3a6358990a1597569b1979cc6d404ab1ee2359a08572214c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/PLB179700216.