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 0x8eba884d24a5bcb3f5cf958ef7badc3be8f9db9ce6dd273849dc0f9f86e5d71c. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cdd053f-3253-4aaf-bcd3-e108864edb09.json and https://artists.proofprofile.net/proofs/artist/5cdd053f-3253-4aaf-bcd3-e108864edb09.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 0x5fce34aa2547568a64ec799c3c51947e23c613d716382254c07d557666de7f41. 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/US4R31109181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07205786f01662d19f76576efa72e179fac0648aa8488d6d047f604bd51bd81b. 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/US4R31109185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d7e090100c5416605e57f6da1c56373c3212714c5b276aef463bc45b8a8d8c. 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/US4R31109187.
Afrah Baladna Sa'id (The Joy of Our City Sa'id) Egyptian Saidi Folk Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe458166e824ce8e92c5d2b074881f7d6498edbdfec2fcdc15a1dbe484454f7e6. 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/QM4TW1527360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a452d274630899e35c5ded1307c0e055dc06dd53f2f2564b5344829ae67f6af. 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/QM4TW1527363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbe678ac76420d6fbaf602218ac0caa2b37259307c8d2f4b91922b3d6b0478c. 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/QM4TW1527365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1268f7859ec4bee1c7c25be892ce1b603714379bfd3ad9f7f25849548036cbb0. 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/CAM460422544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218600d37481c116d4cb3bc174b4f2a0073e5aaa68f0fb69074b6d83e658e9d3. 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/CAM460407089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e7f483c042bd5407ecaeb0e8dbe65274832527259307796679d853cf834747. 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/CAM460604246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c287e2f145f7866e70d37a75995b6fcde69f2f89a19afba0f878fa99e6d62c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:03:15Z), 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/US4R30712971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ce7dc443fdc03dccfa858258682c3a1942ec1f2db8ea9229acec234cef7598. 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/QM4TW1587902.
Rannet al-Tabla / Enter the Rakkasa (Drum Solo / Oriental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c89fd95258bcdd3925b701dbb6c038b492f7bb5fdb103f0ef93473997ad155. 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/QM4TW1587903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8ac3c36c4dd3106798892cc4c27d6115782164b8bf7f10ac970e619be490a5. 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/US4R30513473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca198cd7a1873ac423c693a5999e61ed60ad451a0a3936402403875f489de93. 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/US4R30513482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04c0929dd1775979df1fc3f431b4fabf50ed229ceb9d0ec70bbf89935c1c7f. 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/US4R30708182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be5f1dbeb7db302022541a1b1b4320a318914fdb9879e7343d2bb456f2571e8. 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/US4R30708185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73148d370fe8a15d0dc42039a74e010ef0ac5baaa4842e7fc97baabc55540ca2. 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/QMFME1541318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1bd407718e0fc8043ffc500ca70b7dd604b7f40a4e722fcf6f458f1471ac51. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:36:07Z), 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/QMFME1541321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8790afb54375dbe1833fa107a12e0dd1ff2b8240a1a3af788ce64f461f476f42. 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/QMFME1541329.
Belly Dance Delight: Exotic Music of the Middle East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b55ed9b15a9382c6feb2d64089c7746b8555b5a8ca5b723d1d7ecc38f41f317. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US6R21495927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704222d7bed6c28e7b7e8e349582977ffa424b9721298a435c403eb308e2a68e. 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/US6R21495928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96df20806e47b7a4bf2d25d79f7a33eec7bdcec9963536382f2fab8707d9d2f9. 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/US6R21495929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85af7a08063bdcf1b7ffdbd66df2568ca393b4be2584cb038f1a30224b65710. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US6R21495936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f9f4239864422ca6ddc201ac30956266917681450c5696fd276e1b713b76fa. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:13Z), 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/US6R21495938.
Evolution: Tribal Fusion Belly Dance Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2adb99aa231917f490ed9736180ba3be61db223c7b273b04b2e7ebb9f9b36a. 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/US4R30730939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4780a5282b3b1825873f75716ea59fb817066741e29553e67c9d876ecbe5f67a. 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/US4R30730946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7188782af868863d717f2417eb972b41d63552da1ae677f51b36b872bd976769. 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/QM4TX2183940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3553f9c144b5e32fa87691141c6a78ec643328f0aacc635699e0c44dfe414487. 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/QM4TX2183942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ab3aef95398dfef150a011939b676a09c6fc8a8e0952f6f0141ac3dc901886. 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/QM4TX2183948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4effc48a186a6e43693f04c66e14948dde671786ea46a25a66d238897743aaf. 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/US4R30700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdb9fb5661bcfbcf6375436d8ee51852c78cacf04dc0bda8f4937cd54f60d04. 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/US4R30700040.
The Art of Bellydance: Suhaila's Supreme Selections
Sahara Princess: Sensual Bellydance Music