The Once is a folk trio based in St. John's, Newfoundland, Canada. The group features Geraldine Hollett on lead vocals and vocalist-instrumentalists Phil Churchill and Andrew Dale playing a variety of
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 0x0c59ff18b3362319bc31b1c0ce40cf283b98b260ce1ebe135f3eacbc8b36dfc5. 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/d04c25f9-7525-4cd9-8f4c-174f9eb3667d.json and https://artists.proofprofile.net/proofs/artist/d04c25f9-7525-4cd9-8f4c-174f9eb3667d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonny Don't Go Away: A Tribute to Ron Hynes
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 0x457b1fbe34707d9f5959d503d6226feb1faafc7a773ad3d1d238716eca20c12d. 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/USC4R2109050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc63804b06f6c5f0f897a85451c252a22a5d8e07e0b949b6a3474cd852798ed6. 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/TCAHX2433269.
A Tennessee Whisky and a Newfoundland Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33733b3b03dd19ea4f02ec9860b6379ac3b4a4aa0de86b79971b9ccbe94cafd. 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/CA72N2000011.
La Marche Des Iroquois / Papineau (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dcc5118133beb96a478a3848f37092d26c94d4319de63435777b262fd3c43d. 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/CAIM51600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb412e5a44ce24a531cc904884834937130811ff49e564669492f4de5135290. 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/CAIM51600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bc778c2eb615c82fc0039061819795b46c94b9f239f6a4dabd5416affed2b0. 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/CAIM51600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa4345ac7c7ce02cf17e72caf71f18e893bd8ba199fac43ae4bd86cb098c87d. 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/USHM21296382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc27e3d5eb7b77b50e2dd963f0f2622af63881db21b612a1865a0ecf5db9959. 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/USHM21296383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe254fe54f7387c0e403d0e0128498f840f4f0f3115e8af1bb0cf32f5fbfcc877. 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/USHM21296384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b13e1eb395b8f3d93d71dd96254b99edf9ee681a16f8d11a60c1caee5d6784. 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/USHM21296391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f79a679894bacea8a42266a44bb8a4a0963b03eaf171f3abc8b93fb54c7e25f. 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/USHM21296392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ddae18811d9c3f3284a8d31b7f10eb57db83547497fe4eb6cd0e6ba013118b. 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/CAN111400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc577eec36688aa31ad76cd276a74fdef782d5977eeda2910790b51b3a0fb498a. 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/CAN111400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5196850ac76ffd44265fa8448fa9cd2860d89ac9e8588b1897fd89d0fcfd3fc8. 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/CAN111400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f75ce01fcfbecf3a6c77903ce3f390713165bb7edf6ccf48f0bf59e19d73577. 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/CAN111400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a7328b18b2dbb0ae7a8e20b21dde2bb578aeac633ce33ced98b665a9ee62ea. 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/CAN111400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1953ca3d5c420074035ad32a9e5521b624c0cb8af54c211a98e48ae4b4cfbb80. 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/CAN111400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19118a2bdedd2180b02ed31ca0b128e555f21b9f5375564574aa77b8abb75c1c. 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/CAN111400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eb2c85f732e7adba54482a356392e5c703a821a70aec00c36337cb501430dd. 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/CABD81101493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae5818a7c9da45670a0308259e06d4f9c16204a478ebb9f95ad83e40f81e3db. 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/CABD81101494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2b796af59278964ed2d310eea73f48f34d547d5c7e0139fc447939b1d5b90e. 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/CABD81101498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815ecc29a3b94521f3a6fc38854acfb35bc2b7978f8c1b649592d4a408dc13f4. 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/USTC00938048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fa43737d7d3b5df4a25bed8bac6cb48ffd2b6744e669a6c27625e5eb1c3085. 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/USTC00938072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0055571946d214f776debf2e6f51099753c4b71f3a862e2237dab58ab0a0244. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USTC00938093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8b781978810127da3bc9c1c06e838cd3033d6dbdac7a558d64dbad4206d8fe. 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/CA9E81600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfe544b910e5ba17e1ae97625bfbb25b4989bba3b49580abb916e48f01ff942. 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/USHM81440822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc712c323f6fcfc77a6d8329c9ed28e754d1766bbb462ef3df1e3abc1ff15de91. 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/USHM81440823.
Watch Out For Your Step (feat. The Once)