New Grass Revival was an American progressive bluegrass band founded in 1971 and composed of Sam Bush, Courtney Johnson, Ebo Walker, Curtis Burch, Butch Robins, John Cowan, Béla Fleck, and Pat Flynn.
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 0x8d61a88c947d322baccd62b055593a084d9839685bcbc849237a38199b012af2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0f4df4a-c222-4788-ac90-16fdbb583a06.json and https://artists.proofprofile.net/proofs/artist/e0f4df4a-c222-4788-ac90-16fdbb583a06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Too Late To Turn Back Now (Live At The 4th Annual Telluride Bluegrass And Country Festival, Telluride, CO / June 25-26, 1977)
Watermelon Man - Live At The 4th Annual Telluride Bluegrass And Country Festival, Telluride, CO / June 25-26, 1977
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 0x49e670c54e166679f6d92f57225c8e6183eacb8ab8cdee11385d1e167f9771ed. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USFF27705005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9736f54e03d391bf1ae5ce59923ff95f33667c1eb0e40ab5d741ee970270bf7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USFF27908301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85164aaff71aca31e2caac3d8f4ccc607281ac04290718d1df31a05b768b42f6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USFF28125402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee8fb2409f354e03de909c7b16064d778bc89b72a33eee48d958c690b3985e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USSH58943541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6351d392daa496ec003fb87bc5cec88ef1981fb8e7f87e9fe5ec99046dd866a0. 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/USSH58943544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efe30520b190677520b7dc637cf98e83af6d9673ff40dbbde4ca28440d5ab47. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSH58943542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549c7aefcb8437e898a425b246a5e4e9febc441d1b17502ea73a7d0149ceafb5. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USSH58485492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e589f95d75390dfff98b2de58f1bd81ec49b2e5cfb65950c9001b37268517e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSH50185967.
When The Storm Is Over / Fly Through The Country
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d808c6c12ffe94c8dc3133da8ac8f1075f9e6ed4e1987544ee11d65833e3591. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USFF29103214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaab6df6cef4b18b16e7cdb044e3de7b90d48ad528bd0eaab01c0b683c12546f. 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/USFF29103216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595b905cd830c5ff1aa0f3b5421d226cb020c70566588c21370c08226453576a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCN18600077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd261ce4e55ed0d6b6e8d5821562ebd22e4f420586d8cfe4ce681c08428fb704. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USCN18600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b31a2a0c6cbd6e88e97d45de674fdc26119093140b72c3ac4b4c8295846e1c. 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/USCN18700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504880fa55295680f4290bc4b6767a85d7b41f8028a4b1c9acab64ab4d74c1df. 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/USCN18700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb719c83c0f885f3a68dfd6c07ccbeb2c7deea036edc593c32a9090e2d5af074. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCN18700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4725040c7f6b46db7c32a03c9ff3b278f12f6fdc6291ce0bd42e52dedce9203. 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/USCN18900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac53c7feb9a55bfabcebbaf8932ec3cc59dd97424b2f2ff8d9c64e1994082ce5. 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/USCN18900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d84c0c9d5df43fe0aac854f8561a688943aae1f0c74bcf3a128af1e774cc07. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USCN18900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38496623329d5c033d7e5be763db8ae25a25dbec78f51df7eee82bc87a20833. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USCN18900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42f153b8cf9b96cebae7b16fca672682c77e4233f388348aa8fe939eca0d6dd. 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/USCN18900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1f3431aadbcf501398ad0915461c7530d6642d4760cc7fc701e253fd7a6d6e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCN18900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a50fe5cc4a17897889d8312937febbbab58431d4ca92009373726af9edbc677. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USCN18900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ef82b7b6ba61ef5b276e95a203cc12cb3246f7ffecf9325939eb38887660c6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCN18900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af66cbae5f561091bf68dffbdbeb82fb983ac0950fa5efd25b634f7de5bfa18. 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/GBHQK1602005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b25ee34c459e1efffcd29bc8f8982502ae8f7587181dda202c9c8cd4b72c9f. 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/GBHQK1602008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f06ea123cb23df12c1fd905e7e5cd4831345d8abaa3e10703624d65b402f66. 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/GBHQK1602010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdcaace2535703de0027eae6b4d235c70d2dcd765c044cffdc20d2a05611c6c. 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/GBHQK1602011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80368bb4f64b689287871c31dafa01a4be047d29ce6173c92a545bf049cb334. 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/GBHQK1602012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47fc98aa47c1773117af6cde98dffaacd004a30b636bb02ca1a6982b021d672. 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/GBHQK1602018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea32e4e65e04839517633e6539b4b2fd77ed6bfe8524aefebe242fee106eae25. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBHQK1602001.
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 0xc30698343849c610701c5c2c98f14524ab3c48f62ac3b35f501059cca0bf9093. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/GBHQK1602002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b65e06560f5324f8c6f7c60471161ad42dc701a47bcffe7cadd8967e414cffa. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBHQK1602003.
I Am A Pilgrim / Columbus Stockade - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2149d69b67a1e8d973d245d620b422f50e1de9cd71a6cfe01afea4485b048bc2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBHQK1602004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d3c1df03f1410e5a8348655f9672a1ce484123eade9c5d786c68c19e7a27f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBHQK1602006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95eb983518c0124f7181322c8b5d1a8915939d67328fff651ccaf16dabc6a30. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBHQK1602007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828e2a3b03b75a0f54cb7aea91dcb5ea83c0c5bcdf57f678f360419ace073c32. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBHQK1602009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b703d3eaa25c8436ce34ca9ee1a9fd7072fdfc3b6f74d6472d7578183b62ef. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBHQK1602013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e515708baa5ee9c1bc2e77fdd22f2c8f899179a21485fcbe08f4a2bd0d49a0. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBHQK1602014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aad8df05e9d55fe9a2d73768c1b5b3674ce733425274ecfa1c51e96f4da3237. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBHQK1602015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa7e5420d6e9fd48607c710563a37ce265ec821f1d09600a106bfeeab3e88c8. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBHQK1602016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf600c423e55e74f83bd336b06fd26986308681c7cb524d025a03fe6699fb88. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBHQK1602017.