Sloan may refer to: Organizations MIT Sloan School of Management, at the Massachusetts Institute of Technology, US Sloan Valve Company, a manufacturer of plumbing systems Alfred P. Sloan Foundatio
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 0xff22db120c3640d5a847045adb234f39ae6867e0b6f262ca34842102570ffd2b. 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/6eff856c-7ff3-40a6-9b64-84c53eff6f57.json and https://artists.proofprofile.net/proofs/artist/6eff856c-7ff3-40a6-9b64-84c53eff6f57.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 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 0xe468500b931d78c48cad4f409d670514aa0382ba20e5b10570ddf7bb41ad4461. 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/USY1R1123003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd14e0800973d2ea6a28524ee5f6c5306f02f593ecce638c40e69b7f523979a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USY1R0804901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a15657d3f422950e95fdea0a29b003239e9758968becd924cee5ea570874821. 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/USY1R0804906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f3ca04b2bcdba2b32b8116e4cf1be41d762af3ded07bf704e95cc1acbbc19e. 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/CAV160600160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75714957d03bad6de648dd091463f5f7a89ba56a76a253690ec3151b87a40f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAV160301771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37373f183e0f0f8343e10fcf48c659fb59707890a325f9eb4bc0b8b0c2039170. 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/USKO10407932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbed43e70c82432c9c4a5c65d5f450a604ce14c6c2ee43444655077633dce064. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USKO10407934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac22360fe45edaabc2d00462af609e32bc432330e3ffe502a63d5a590f84f426. 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/CAM219904009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb759836243a3b10a6593992db81fca22c89edec941279c141ea0c9082be4d137. 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/USKO10407907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad636aab312ead5681320a6bb5a5357f2026459e1bc637f041aa09e077d9372. 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/USKO10407912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aec9077527c687690b8544c0ad1fea62094cc31add9ecc8e95c21b490d9369. 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/USKO10407917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddad83556f8c09d7b0d6e206729192d228706d176e64ff75ad483723aca23bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USKO10407920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3428dfa6044fdb6994e641c01ae1768da4240fd96bf770449dd733f37f26e79. 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/USKO10407926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03813d9cd5c80288964155dd062d71fb508348ee17e47a3ea00abd5365c9dccd. 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/USKO10407928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ce7f5968e6730c41fa6e9157f0f2246a16fec3b6d64b1865331222bfa4f843. 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/USKO10407989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd31c378ce74e42652c70de4c079dc0238b85d17c703f5696210dbfb3a0fd6. 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/USKO10407990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cb481378c05728f410c10bedea913f719a8d3844c18af925bc8efa2e077c83. 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/USKO10407991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7d622618f121c0246cd10127e7cd360cc6288c6e16a102801719de0f80c87e. 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/USKO10407992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795a05687e4f6ed752282fc3ffa53ad26d2fa3135a35a405c31dc858af7941eb. 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/USKO10408000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9498a56109f537bd6f9197c61e922621902b1ffca2f01daeca6c6974c6bb1bbc. 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/USKO10407945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb047a3e6f301c14134495a5bcdf1d96ea2fb0b167bd4f18daf3837a2affc7ae1. 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/USKO10407947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4390f58d28fb90a15899691cb4ef8a85f5417aa1fcfdd390a2f21946346d81f6. 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/USKO10407950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888a0852f24d8b106c0e52d46994e89ac0be9ab3300b1528267ea1b47b4881f9. 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/USKO10407954.
Kids Come Back Again at Christmas (Live From Yep Roc Sawyer Sessions)
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