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 0xeeb00aa36c94c5dca6a4ec2fa2f8f3e511f31a74df9365da8d5caecf4d416816. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b83e0e9-11ca-4c00-911e-b8aae247b8a1.json and https://artists.proofprofile.net/proofs/artist/8b83e0e9-11ca-4c00-911e-b8aae247b8a1.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 0xe2cf87dec23cfd1dbcaee65c7f19341c3447dc6c30c936e24f192dd6290bb36d. 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/NLCK41021346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02fe7ba2661833e1a3b3cccddce86424084e42b31be4e760925da5adeda8095. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLCK41021345.
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 0xd2a3713d6f07b0c4017e3895c7f9e7182d4fdd174b2404530c16057e4d58c41f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLCK41021356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252864397d6df99ee538243166bd40b23eac478a636a95612fca8dcdf73e4dfb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLCK41021357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560362470b940f42c355b770f87093c06f63c9888e2d0dae0a78f460019a8e2d. 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/GB8KE2402601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc9299a84d8d5ecd016d075b869fbe20c8fd7f30efb0c935ac4e0ad4d4e4dd7. 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/NLCK42238264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f258671b1413f40d93ad4fcf5eabf495fbfa1447ae3e434163c8e172e16c58. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLCK42238267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e3ca92130c6242705f553d800853ebf5eb2aa3aca0d69e2b1b4a32393aac94. 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/NLCK41022838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfff09041581e8161c01862245c2b10748a0a91793348a8583a72c0da843663. 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/GBKPL1669463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d3e8d7fc1f763637dd1ad14658c476bcc9b12e05287f1548c2b0d709efe0c2. 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/GBKPL1669470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b1fc78574c41a6723854a3fdacd3508bfd293a3ad0777502ec9c8aebcfac14. 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/GBKPL1669471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fc51bb1415e092d7d5731f95eaf1a7e9b2dff442b33b515f3060e411f7ac94. 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/GBKPL1669474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef3f6c4a938b537353ba6f408937cf401e2910b49b3edbe59c34a816bc1d6ad. 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/GBKPL1261087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc792c1e80cdcdc81f25c00004ed7f93fb242d0a8635121899008715ced4d37e3. 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/GBKPL1256971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c43e1ff0dc3dbdfcd73ebbf0747a4670eb0d0a0e8008110686571c052897fd. 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/GBKPL1669453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9326331b3d17fb9a6667b53f50a60951e3120459bd71be5c60d66b3d80aeb9. 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/GBKPL1669456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712da85ebf6091ce9ef590f9f4f97848bc67af129eef049d5797b9caed8ac2b8. 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/GBKPL1669468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449745ead5f43449e726b19b1892dfaa5144f646beaececf358c4b5d4177cb0b. 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/GBKPL1420659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5056f22fc5c0c48c5c97595de93db2ad9224c4963f16776c273eafd8dbfc10. 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/GBKPL1669475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89804086390f7154f61c839be5ce785ab0d66f6dc04820dc3c733590774856d4. 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/GBKPL1809463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a5b32e030f352f8c043f9c924da473656b0068fdc4e31d78422fdc6a152457. 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/GBKPL1669476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4707707cb6acb275ce316e931680d9fcb51c0ae6c8ca69bbc9a3b552e695e837. 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/GBKPL1669477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8995e16094ce81c5247c906777584519a7bd5e8845983ea0e57e0849c4f74c79. 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/GBKPL1669461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf815c15bad9b87a68aa3ad3ac7680c603c4923359659a3ae3d6dc5db0898deb0. 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/GBKPL1809476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dff3efa4c5dc877f8b1553059837564da3a7bf2607e35fb96e940f826f569a. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GBKPL1669473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fff903d5ee6b92362614b212f712f360d7e248cccaefbf1fe88dbe267956866. 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/GBKPL1809461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ff38c96a7eeda5e5f61111446e0bf28e0db5fe93f8166abddb4aef9c2003a0. 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/GBKPL1809452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dc7c4e8d152fad690e94136534293ed0f3da60e984378f8801788fa5cea602. 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/GBKPL1809453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9c8b6b52c2937a728e39e3f4a49ffc013fa27d9032e36306627dfd01b3ae67. 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/GBKPL1809455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d1901cca361c18ccc69e28da24e4c47b5aba8f66d7974194dbf5be13ec111. 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/GBKPL1809457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ceb38e02603e7e2134546015975312a5f2dc0131ee60bc4efc5084c0983705. 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/GBKPL1809471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7f5d7e9e1cb586611aa3b084f32f4920b3fb9f720d3db5ad3fdf67f6df3c03. 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/GBKPL1809472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd1075d8f314b21d1288f3d0cd9669cea3ab857bb6bd5dc8d75e31752214e1c. 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/GBKPL1809477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a9c4ab1f1279d774135015527e403109858fdb49b73e7323e0610ba14feec1. 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/GBKPL1809479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f397928ce8cbcac46ce969eaaed1a5537c9ff7aa1b5a28860c6648f2d034ead. 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/NLCK41014479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319dd13937aef88d8037e069b859f71034c29954ed3303487110828610dcd009. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLCK41018058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec47e065c6e9065ee40237d8407e81e24c78a1fdcbcb9cdc7d535c3965447dca. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NLCK41021906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce618dc5c1d17464d31692589143f3a9b331aa619aebd763abf25fb38065567e. 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/NLCK41021913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c3f075f1adaf450d8447f3344b5047afc91ffcb1116f377f6804415fadd974. 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/QMFME2249486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b6a4e4352b391809004ff9014619ae5bfd6da543c566c59744e37770e793ed. 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/NLCK41018021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209239ec9927038c157c2e117a2c8caa70129bfedff6168dc5144acaac91d9a2. 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/NLCK41018018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123b8138f42d8c796efebf93b0db0eab25d498135de8dc23c260a5043e62dab2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLCK41017783.