Stone Poneys (also the Stone Poneys, Linda Ronstadt and the Stone Poneys, and the Stone Poneys with Linda Ronstadt) were a folk rock trio formed in Los Angeles, consisting of Linda Ronstadt on vocals,
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 0xc9fcc9cc86060f7a1fbf80ceb61a257f2a76610634d18fa5bfba2021de5b4a05. 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/d2d792c1-4f49-43ec-a125-b2aea4c70a5c.json and https://artists.proofprofile.net/proofs/artist/d2d792c1-4f49-43ec-a125-b2aea4c70a5c.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 0x0ab13bc17c95de53fbe2ccf2cbde81f7f9b642c7674f255898a517f12057fdd9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USCA20800771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5134d197bda53e786a5b494075603ea761b0e3954196890325f0be4bc6c09965. Chain 2 (Bitcoin): anchored in block 956777 (2026-07-20T12:00:59Z), 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/USCA20800776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1050f1af3fe19b1de91739f662aa81997d6eddd920e9e7fb2edd3ed9def7769b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USCA20800778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e91412807782f4a643c9a992e0b933c46078a40e345debe9e8ccb04e15517e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:21:04Z), 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/USCA20800779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9086501b3cc9a546387d59410d2754433d2a4f925fe95f1149c76c2337cdc762. 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/USCA20800777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e855757af4dedcb1c750221522a363829c6b6b341c9e1d4b91a4a48430d4f07. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USCA20702745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8069b5e1e253c5f2ac2778c64642536b2f8757d00667045416ee59e073d6d423. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USCA26700290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc613b75d16e5b745a52e4c69e15542e799b399169b4d7a91bbe41adfd71adb5b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:10:39Z), 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/USCA20702742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d2ab04f93390b3a0364d1272f53da3e6b96f13a33a1d884876f39d15fefbe8. 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/USCA20702746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdba182400ca39bccfa17b4678861009aa96a9438a771a844957a6324a09fc4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:12:47Z), 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/USCA20702748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccf2caf6a7ba5a7459d1358242d0d575856b631433730179fdfe5dc40af611d. 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/USCA20800790.
Linda Ronstadt, Stone Poneys & Friends, Vol. III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf260f4df751a556ae8a3f1f85311493dfb941b9edf070d089d78209f292bae68. 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/USCA20800789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b12f39ce16844880439cd9159483421f6c00d6b1c10d0e23300936827d70b6b. 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/USCA20800785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d8fbca181e0d798577d69d4143af51ffebb98d53e9d3829b6a1af830eba0b. 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/USCA20800784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836b5406a51babc15b2320549ee9bf636348a8a9cb0707a01a4e76e89d3a045c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCA20800792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccf2caf6a7ba5a7459d1358242d0d575856b631433730179fdfe5dc40af611d. 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/USCA20800790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8019c96fca5a8dc430ac1ca957f9fbe6847aab9dee46a8c56999e37982744873. 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/USCA20800794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e87d8f1f161958f0c520ba0b3526ccda5e31aec175feaeb9db22906959c9fbc. 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/USCA26700181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccfd4c16f1402937ece08e05746dc87a6b89252a196c7e3af827666712e72b5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:53:57Z), 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/USCA20800783.
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
Fragments: Golden Song/Merry-Go-Round/Love Is A Child
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc981fe4eeebfab617d06fe348d0453f2e605096a8e088f654375c07d540c11e3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USCA20800782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7d028ce5f11fdb8e506f11f8e49b8159a953e427b9ddc6560bd691d8e88285. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCA20800793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2825962f7f2b85505a5b5832c84b6834d69941dee57fcb6e07957553652a4946. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USCA20800791.