A'dam may refer to: Amsterdam, the capital of the Netherlands A'DAM, the former Shell-Toren or Toren Overhoeks in Amsterdam A'dam (The Wheel of Time), a magical item in the fictional world of Rober
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 0x600eb2c8bb4c1b7a1172270937a44396edca3ccda07b04ab5cbe105ebe820e38. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d26d0d6-c26d-456d-bd14-ec769d91f3d1.json and https://artists.proofprofile.net/proofs/artist/0d26d0d6-c26d-456d-bd14-ec769d91f3d1.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 0x5772ed9b803e662966afcfb02d4918363c8fa1e0dffc50977279e23baef8f5bf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZMEN2194933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4ea2c59d37a10295696175ae22cc4e80b35fe84155695fee9f7007249cde20. 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/TCAGY2348556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ced1b8783e1ceb4f69cc466cf19b3f3dd57115ff6493e6819708d439eb9b90a. 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/UK5KA1300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58b6bbeb1854b246cdb8d6058832ac072f7ff77fc74fcd00818e8f4bd06f57c. 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/UK5KA1300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d695f70e3107d5de28fd189b03564a2b0b0e9c8cf07ddba07ad5dc46cccbb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCAGY2348575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f7e64b54b39d3bfce3b6cb3bb0d04f0db5843554a1bb5eba495bbac61ad979. 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/TCAGY2348654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f78913ab0614a928b70307b871591c8fb908bdb218ee93b0eac692b63d01c40. 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/USHM22098123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d10fb3282381e375427d001ea625c179a980a3971a7a7d682d6d6382b694cc. 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/TCACO1684074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafde2d93b4360eb10c7ae96aeb02d6b032a93b4022c78c7b9b82439b243c649. 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/USL4Q1750287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f8193c6b64ec319842cfa257ecc18f4564273e0e39e4665681e000cd9aac35. 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/USCGJ2258931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00769ced4ab9bb2fdb9d89d4e3d6fc0be979db9eada6d9483361c0380b95a39e. 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/USCGJ2258932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a52811f52e9dd54861f45d5ea31997fc512f9fd55f08a92496b8ddf5cb161fd. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USCGJ2258938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4fb387a02f08bc09c39a1cb85d14331ef48adab512ef0c9b59af6241c9f968. 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/USHM91761455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa741cebac5c6ca77f928623d0ae47e8d72797a6020d49d2899ed47505d89eec2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USHM91761467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c74f5d57f2a1c34b0d40446dd6159149b018d2b4e4402eba46c1143a80e89b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHM91761472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe4fa4336c2f638521d1f62969e87e3ae2dee9d527f4f73d0a82ad739829c23. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USHM81857823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3245ba471c7df8e6868a98efaa04afb1027461b438ac968560b469b766600ea1. 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/USHM81857828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb7da8b18eb70b444879c7b3606ae3612ae5052547fc79340bbb74baee64339. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USL4R2044779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d33faf870d681d87344b669ddcc7361f41a75f4e695d2f3a94a4531f4df03. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USHM92059383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da353463fdb3ccc53855f1632985b1d018440456d34407a94a605f518c14448. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USCGH1864611.
No Alternative (feat. Mike Abdul & A'dam)