The Sandpipers were an American easy listening trio who carved a niche in 1960s folk rock with their vocals and innovative arrangements of international ballads and pop standards. They are best rememb
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 0x7bc7692d4a68f3848c8376d664baf84996a983406ee6aa9f4467adefc79b4064. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/592ed3e0-9508-4ca2-9da8-df786da109f1.json and https://artists.proofprofile.net/proofs/artist/592ed3e0-9508-4ca2-9da8-df786da109f1.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 0x587a138bc1c6dc1f054bd47ccec63cb1b4a3f4abede9ca5d6e624ebe005c0839. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USAM17000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810895c2c682371d9262338dc0fa29f5eb8e1e18a0f971b97cfd26d5ef0495d4. 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/USAM17000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcea3eb50409793767ab317551c6c00eb9894ee60b95abeba88c41b5b42e944f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USAM17000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf48e51169c9e289d50158322b9655b33bcfca700122fa3b6e231af3aa2c7ce0. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/USAM17000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38251392dd86d606cedf1cf3a430ce8ae71711ca8d763673cb25e7db1669193. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:21:20Z), 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/USAM17000835.
Stasera Gli Angeli Non Volano (For The Last Time)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b29091aea8d55a4dfec6e74f05067a0cd4901c3a1bbc3b2af2f3c6d58d73b5. 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/USAM17000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8954cb43a93bf5e9e2b6bc25b00d15c7b032b523e73bbf1758e9af3aa1a24a65. 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/USAM17000837.
All over but the Crying / Ballad to a Missing Lover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d23e905b93cc39b64c369291fdf59019d47771fc2fd663d0d721b153cceb52. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USAM10000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ad19739efe8b097f89e6eafed1b756ba8b037551310e09e54deb377836a01a. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:05:33Z), 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/USAM10000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd19d081fc551e599e3c2fb3d8b011af32a7f2ad97013ea6a3450700e0b7dd8. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:08Z), 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/USAM10000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7820f68aa705835ee6210738825f0c5e37b7ec6878cdd83474407616f08af34. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USUM70603332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d42d019b40f2b867a05abc723615e5df45abafe52002a324015ff7015ed8fff. 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/USAM10200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdaa0712a1fae92b7d9f28e0d9fb59dcb7f8b82cecf76d826b18bbbb768e986. 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/USUM71203178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ac4eecc8d042f7b3a25a266cc4fa20601c371a19a0b3cfae9ab24170b01d37. 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/USUMG0000449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d62185b7c2c3aa33f4ca2e11a6de88896bcb193b3c1401f627974df800359a3. 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/USUM71803570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03baa822eb91c52b2070450ef57bcb968cab695aa8513b4fb2be1d5afbabc91e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUM71014217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce18b91a7e1287920f68169758211044ff488c9695a2a83221f822c6861c445c. 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/USAM10400340.
Chotto Matte Kudasi (Never Can Say Goodbye)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a892df526e6e890cc55662e8b927f15cae7be0b0c633537724567a86a5bf6d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USUM71803584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4609b7f8837f25a7f52c1cb07ee51ea19ebf49e5137374dd77a971613942637a. 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/USUM71804446.