Tash, or TASH may refer to: People Shortened form of Natasha Tash Aw (born 1971), Malaysian writer Tash Sultana, Australian singer-songwriter and musician Tash (rapper), a solo artist and former
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 0xccf4e1714a90883f2d11dc7edd0c5100596e63be209f80fc6c21bb58d43899c5. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13536fcf-d17f-483b-9b24-2fcfc93a410b.json and https://artists.proofprofile.net/proofs/artist/13536fcf-d17f-483b-9b24-2fcfc93a410b.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 0xd43a28c2f5c046afa0db70983e5a847835e44074ac078c26062f9ef4daaf4b80. 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/USUYG1074480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5850bccab508d637d22b4ee4d897fc81690ff38b7b51b7b6e03bf8834b6d1aee. 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/USUYG1074481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f7170db714433be53c4637448fb63bee5992d4ba4bc074240c572bdc25207. 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/USUYG1074482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f3a83f5e8de7cd3bdaff9734c3918b43dbab6b350f1aca71866312f4bc4b9c. 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/USUYG1074483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143a323b3f788c9c9ba42381c7f97bc94c42686113effb10360c341145e7da48. 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/USUYG1074812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f342fe0a97e1bc294a43d7026c095ade1e7c1fbbbcaf0822f999a1d9cffb8a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USUYG1074757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8dc198d1b363903ad24e274928806d0c8ea80994e8a63ec359969a4551f4e. 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/USUYG1074486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bda9155ac5be9c3f2e662c88b0bdb187e36c6531d5e7bd327e08f2db89256b8. 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/USUYG1074493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34488998041e531fa737f0951aa83456d291c5e66ce619891f8feaecb464b66f. 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/USUYG1074763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffb72e4c5761a37399a3078317701635e03899d554c5e337a734caf9bc9deac. 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/USUYG1074830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd86783f2a1fb8ab3540d942c193222217101c746ed444cf148688c686c09579. 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/USUYG1074506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5305f9da2fef8f60f2757acb95328c9e2c0644afe2ee4db8107b95c64e1ce792. 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/USUYG1074507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3297199737f9f5fbbf96797de2963580d3f08a22ab35d12303e281a478eef. 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/USUYG1074509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c80e69ce8f7f6020f046ea7253cf3c0b761adee97e53eeecbcce2415d6e701. 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/USUYG1074739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e76f6c90c519dbffdb7abf8222374ecb3c5f85ee2a7a9fe712529b1efb47ae4. 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/USUYG1074747.
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 0xeb8e26bce6b303c4286fc4711992394f1a53c24ef6f36e39ef8a74aa6072814f. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/USUYG1074811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d98b33bc7ead42fa774e0fd8ed6d0f797f4df0526921ea86540b26a6a7c7bc. 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/USUYG1074484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d63f248686758f6b5fd052915ecc8b7a832778914d8a4b7f2acc3545a790092. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USUYG1074494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc11cabb745c3e2a37344ba8b60197d1afc78bd16b081d4c47ede6c1d4125c07. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USUYG1074495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde00102d9c306b6a69031216398b4bff80160a4f1da0133a8429b9b4adc07adf. 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/USUYG1074820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe947c13a592564b913d457a7d70029287ac81cef2c73d5455ff048b01a3affab. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USUYG1074496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f6177e4ee11f2c3c78cdee1b4a51035b2d67cec74ba3387de0383c0b4107c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USUYG1074768.
Must B 21 (Soundtrack to Get Things Started)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc47545075e3c379968decbb04ad555a634e138b56e5ad53bc3016c9789cb5e. 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/GBEQT0390903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e3e58c0e194a6f35853e56515d4a3b990e91e6e3e88172b89ae0acf2226676. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USZEG1800130.