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 0x775b16ab27a352a4fcbe508552489e66aa1dd8179fe0185eb7abca507fb077cb. 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/39fb9387-ef7a-4156-8db9-7fbe3d66a125.json and https://artists.proofprofile.net/proofs/artist/39fb9387-ef7a-4156-8db9-7fbe3d66a125.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 0x91713bb22f9b4914dce76512b57f9c55dbfb7236c9e119e32cc9e7360258d84f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN92297043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67e27e70c9b4946ca0929eebaafd5e1091cd1b1b53bda05e703644773f402a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN92297045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227386ded1fa7a7e79fbe22d336c64f379a15c6af46d1decbac03f7ff4560c69. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHN92297053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed6ceab0e16da3d61f22212cc8e61884b848cc00d67d931eafddeb78c15aa77. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTB62297366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce348df5dfa9e10e526b0308d2c5099e34dc3991bd5b9cc7925c06aa65bbfac1. 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/QZK6J2348216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30cb9804362ff2c4c906d53d847afb77455d040168355237d422c09fc6d7a5d. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:08:19Z), 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/QZK6J2348218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f9747362f0cf523cea13fce26544d1c7fab7abc03c9c984c609bd6748c1ff4. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:24:46Z), 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/QZK6J2348221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b8f18e3457cf40ecaca34fef6858f02cbd512fe9fa25f81b817084d63af729. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6J2348222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d13c524a698c5bed1142366d8cee302691411095bb5fefd6590933d604590c1. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:21Z), 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/QZNWU2321649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66515d53954d04ae9d7b424d655c101ac2ca77eeb827a24f2d95f1cc24428e57. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNWW2377019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73998e9fbf2e1f9b2620b1f96d9a83fe2d30f3d8b0d489af7fcf627e263128f8. 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/QZNWW2377025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fa88bcba27ce9d2e17cca1ceae2326b6c1081f8036fb97fcc41f1ec97c3ecb. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZNWW2377030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768fa68f39cfdeaf093335fb9691689bf04741f0e456a9c9b69a6c60407e0ace. 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/QZNWW2377034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7459512c72a5cf42b571cdb7a28e4d3b5d5a884d12177e612b02db2b2c731951. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNWW2377046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ca179acf80a725fed7dcdd987a63bd58b0824de8cb2c79654b40b7b6e02672. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFE2365470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6294f1b84179d977ec47781cd57a7298dcae210c6dac1db16308ee61898ad4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZWFE2365472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6022c74d3a46b140d19ca97512bd776cffe03f1ad687fb4957401760eae06aa. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZWFE2365473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aafa449a2366234ae23b928338276d9c7158f3ec7d1b4146ec7a6fb86eaa3a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:53:28Z), 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/QZWFE2365475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c2acbc4fc5e2386744a5b656c530c0eb7fd261e3911ea7912f2eba95a5bb90. 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/QZWFE2365476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e350f7490c66b8202b8cb0dcd335912fe79839e41e6b0ba05030443d2ceed85. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFE2365477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85691e193052892f92a29e03bff8ee897ffef845ce98c2c71cffac0ca0bcb6ea. 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/QZWFE2439624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff001f83f0f6cd1e6d74d0553aafe8239b93fa9268c18b841e21a31d1f9eece. 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/QZWFE2439625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43d6dbf452771510633fb14d2f21fe7df67428e963c7e095ff6b5f86fd39724. 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/QZWFE2439626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe168eb062f66e55ce1b0ec5689225c1e7890e131a4d29e288addcfbbb8ceb1. 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/QZWFE2439627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e2399163f1ab58146f70a63e8d877ee6672d2835e2092b9bff5c2b88335a4b. 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/QZWFE2439628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ea88e556defb7140aaf99c0f246d8fd783c96c8a6eedfe8568bddaaf143250. 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/QZWFE2439629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db6ab19c8b6d3b8cfa6d5c5f22fccb9b7ca26ce0800bed44f5225db233d23d9. 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/QZWFE2439631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7dd8a3220f004d95ee32f73f71b66025687086ef377028b8f7e1fb78b78c5a. 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/QZWFE2439632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374435bcc073b3b5c340fd1ae08666f6f4d189faa443abade19bf3968ca15fc4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWFE2439633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ce027db1a5180ddaf781e69a6202dd9b88f87f5abe68de63338321f46f84e8. 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/QZWFE2439634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d34b40bc1d09c872eaab2721d4bd624d7ff41518438765d6b6d1160e3765e2. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:10:29Z), 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/QZWFE2439630.
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 0x53406b110a86646aaf0e4360cc06259172377d90bdefeb53109ede9da9003b45. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA82526335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfe0e2d2cba8e0ff2dce9b96bedc8c275526eec7bf9d9322699f8d71b036490. 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/QZDA82526336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa384451d2d080183ef134b9a11a068beb9d427d521cad2e6bec75de86f1270c2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZDA82526337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd6d3cf719521f13dc2bd7e42099fc1db3dae65707d7d3927950448805bfe1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDA82526338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc7af646fc5c079c0c1e9756717b5ad3ea85c18339721c068a9cbe655b73de. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDA82526341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6962d0676b612d94de1b7ed1a0ac4a57b6590bec0fbdd738dadf2c29931341a. 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/QZDA82526342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4740557a118a0bd76aebc02dffa4128d0da4102b184d5cfb828a1c7a8c6b219f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA82526344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de85d8b522e75aae73a631fcd60c43733a831a40be1bcd5b72abab047ce77b5. 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/QZDA82526346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b760114bd6d9afc7a66a4bfc40d7d7ca3474b757704b7e437af1711034559a. 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/QZFZ22316839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2df900f2d21d6d687e708bf24c256a93d6f1a3eba17d5508408bda4bf763f43. 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/QZFZ62543749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f59d9868fdcfaeeac630d4d685663eab1a0c025b8559ead6e1f14f7efee5a5. 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/QZFZ62543753.