The Posies were an American rock band. The band was formed in 1986 in Bellingham, Washington, United States, by primary songwriters Jon Auer and Ken Stringfellow. Their music has its origins in Merse
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 0x948dc522c8bc5e3fa9fadb215b372f3c8325a6d7196a2029d7eb487cfeb44aea. 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/6df7a2fc-cc28-4619-895d-0770cca85857.json and https://artists.proofprofile.net/proofs/artist/6df7a2fc-cc28-4619-895d-0770cca85857.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 0x78904da84ab0bef77049f031c22ab2a757f471dd7065c5ccebeaa51bdf720049. 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/QMWHB1400634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff9b0c47bcc034b4a82a14b81dd3e8a7defb0980b785305d7978ad09ecbedbd. 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/USGF19030501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9206c27efc37f11b8bb98c79623b5652becdec09740fff1c7c07afbf9918c28. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:29:27Z), 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/USGF19030503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e52f83284270f76643148d27de087533c31ee0129e87e1e50b1f4d6c19e3535. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:11Z), 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/USGF19030504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed125ec4bdeff5377d9e7cb80cd80128f501bfd12288e8c42dc4ffae02de7954. 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/USGF19030510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbc812edb192be4ed5906b9d4ddb3ec4a9397eb925699638c81d071c31a4c1a. 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/USGF19952206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de1522b23998ace14d1b73fd1e3f2ad6de95c3bf778b80d79bf1b6716c23b04. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USGF19952207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3073847e1a4c5a3b3c99f7a680283e12ce7877cde2981fca268c74c48bd74e7c. 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/USGF19952208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becca2bae06f840396bce54382bc7a0422256f7fb8f3d21582d5d3a8008b5f7. 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/USGF19952209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dc992b2b42a307400c44b37f87c7121c6f73741a6fa2e37d5fca20b620347d. 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/USGF19952210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4370c5f63f172066a2dbf7988e0256492572d23f72f096082b595361863673. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USGF19952211.
Live: Lee's Palace, Ontario 19 May '95 (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ffc8977efb76936e9dc2db5e1c5fb667c4b2b108e23f3e00c1eaa60ab43ef0. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USGF19682901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e6efe9adf89725315c86a1babfb71dc5497d82dae56d439ff1d56ecd6f9a81. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USGF19682902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a67f28bef92418b1c2c288c4da7abff5d4769c0ba26204bd00324214f82cf5. 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/USGF19682904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc838d63fdc8f4f0935d80333af836f6cc0e1926554df581ec7f87824908d3b32. 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/USGF19682907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d45e7d1b34178e07f240937a09b1d97afcedf4f45551e00b11ec872b7567f1. 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/USGF19682908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba891df5e78b0dca85bae32144e8d4bdda4e841f59c023893a2180f6d7892833. 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/USGF19952202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ef4d3311cc49d30c28551cdbbab51cd9488415044ba92c36a0831483ad449e. 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/USGF19952203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba437f8dc827a695425eba5bfc5cc68165cc53e445ac2112083b77300997525f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:44:42Z), 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/USGF19952212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c640bf94b0373b0e03d6a83c42fc262257614d0fb16e7fab1ea1459dee778f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USRY20514140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e74bf8d55674e0ef5405850abfeac817e20afb56a6812a49ad136437d858456. 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/USRY21000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06428e1a32547b93bacbfcfe90f5d5c4521393dd63fac58c6b060394e93d10f5. 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/USRY21000077.
Big Star Small World (Tribute to Big Star)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecefee55c333cec1bdc0e49e9ec3b05623d5afda86d37cbf9b551e25def5e24. 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/USKO10600457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1475db0467f601a97a90d23226847ddd5652aea036f6bf53646d87ed78ac7b0. 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/USGF19952201.
Jan Douwe Kroeske presents: 2 Meter Sessions, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643078b3e17c37ce83428b57c9039168fab32dc8ff7fd851ac9d1bd9e466734f. 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/NL07C1700613.
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